Are you as confident and
|
|
- Sherilyn Melton
- 5 years ago
- Views:
Transcription
1 64 March 2007
2 BY BOB PATTENGALE Although Mode $06 is still a work in progress, it can be used to baseline a failure prior to repairs, then verify the accuracy of the diagnosis after repairs are completed. Photo montage: Harold A. Perry; visuals: Jupiter Images, Wieck Media and Bob Pattengale Are you as confident and efficient at diagnosing driveability issues as you d like to be? How do you know if the components or repairs you made corrected the problem? In many cases, Mode $06 can help confirm, rather quickly, if a problem currently exists and if the repair was successful. In this article we ll look at how Mode $06 can be used as a diagnostic resource. By now most technicians have at least heard of Mode $06 data, but many may still not know why it should be utilized. For those of you who are not Mode $06-savvy, let s do a quick review. The On-Board Diagnostic Second Generation (OBD II) standard created nine diagnostic modes. The Society of Automotive Engineers (SAE) defines Mode $06 this way: The purpose of this service (Service Mode $06) is to allow access to the results for on-board diagnostic monitoring tests of specific components/systems that are continuously (e.g., misfire monitoring) and non-continuously (e.g., catalyst system) monitored. The vehicle manufacturer is responsible for assigning Manufacturer Defined Test ID s for different tests of a monitored system. The latest test values (results) are retained, even over multiple ignition OFF cycles, until replaced by more recent test values (results). What does this mean to you? In the past, without Mode $06, technicians were basically blind to what decisions were made within the powertrain control module (PCM) to set diagnostic trouble codes (DTCs). Mode $06 allows the technician, utilizing an OBD II generic scan tool, to check the most current test results for various components and monitored systems. Mode $06 data is like having a view into the thoughts of the program engineer. Early OBD II vehicles report Mode $06 data as Test Identification (TID) and Component Identification (CID). The screen capture in Fig. 1a on page 66 shows Mode $06 data for a 1999 Toyota Tacoma using the Mastertech 3100 scan tool, and what TIDs and CIDs are currently available for this vehicle. You can quickly see TID $01-CID $01 shows up as a failure. The small screen is not able to display the actual test data. March
3 Fig. 1a Fig. 1b Diagnostic scan tools will display Mode $06 data in different formats. The screen capture in Fig. 1a, showing the available TIDs and CIDs from a 1999 Toyota Tacoma, was taken with the Bosch/Vetronix Mastertech The right column notes Pass or Fail. By highlighting and pressing the tool s and Help buttons, additional data for TID $01-CID $01 is displayed separately, as shown in Fig. 1b specifically, the test limit and test values. Fig. 2 Early OBD II systems used the TID and CID formats. CAN-equipped OBD II vehicles will use the MID and TID formats. This screen capture from the AutoEnginuity scan tool shows converted CAN Mode $06 data for a 2006 Chevy Impala. Fig. 1b shows the details of TID $01- CID $01 after depressing the and Help buttons on the scan tool. We still don t know the definition of TID $01- CID $01, but we do know the maximum value should not exceed 128 and the current value is 255, which may indicate a failure. In this case, the TID and CID definitions will need to be retrieved from the Toyota service information. Both TID $01 and CID $01 relate to the catalyst monitor, which we ll discuss in detail later. Newer OBD II Controller Area Network (CAN)-equipped vehicles report Mode $06 data as Monitor Identification (MID) and Test Identification (TID). Fig. 2 shows an example of Mode $06 data for a 2006 Chevy Impala using the AutoEnginuity PC-based scan tool. The nice part about using a larger display or PC screen is that all the Mode $06 data can be displayed on one screen. Using this format saves time when reviewing the data. The key difference between older Mode $06 and newer CAN Mode $06 data is that SAE further refined the definition, unit and scaling conversion process. For example, prior to the new standards, Toyota established TID $01 as Catalyst Monitor; however, Ford established TID $01 as Oxygen Sensor Monitor. This can make the process of converting the data confusing. The newer SAE standard recommends vehicle manufacturers utilize MID $21 through MID $24 for Catalyst Monitor data to be uniform. The SAE HS 3000 On- Board Diagnostics for Light and Medium Duty Vehicles Standards Manual provides additional details. 66 March 2007
4 Fig. 3a Fig. 3b These are screen captures from the 1999 Tacoma using the Automotive Test Solutions EScan tool. Fig. 3a shows the raw data with no conversion help. Fig. 3b shows the converted data, which saves the technician from needing to look up Mode $06 data. Locating vehicle-specific Mode $06 data can be a little challenging at times. Each vehicle manufacturer uses a different format and location. Some (Ford, GM and Honda, for example) provide the data on the free portion of their service information websites, while others (Toyota, Nissan and Chrysler, for example) require you to pay for access to the data. In some cases the Mode $06 data is very detailed and useful; in others the charts are incomplete. The point here is that you won t know how useful Mode $06 data will be until you check the data. The diagnostic scan tool you use might do a lot of the work for you. Fig. 3a is a Mode $06 screen capture for the same 1999 Tacoma discussed earlier, using the Automotive Test Solutions (ATS) EScan tool. In the generic mode, the TIDs and CIDs are not defined and the test values are in the raw format. Fig. 3b shows the same vehicle with the Mode $06 data automatically converted. What if you had only the raw data and needed to convert it to useful information? The next step after using an OBD II generic scan tool to retrieve the Mode $06 data is to locate the vehicle manufacturer conversion data. In the case of Toyota, you d need to subscribe to the Toyota website to do that. For early Toyota/Lexus vehicles, the data was available on one PDF document. On later Fig. 4 Converting the raw Mode $06 data for the 1999 Tacoma shown in Fig. 3a requires a visit to Toyota s service information website. This chart shows the data necessary to convert the raw data for TID $01-CID $01. Toyota/Lexus models, the Mode $06 data is embedded in the DTC charts. Fig. 4 shows a sample of the data for TID $01-CID $01. The chart defines TID $01 as Catalyst and CID $01 as Catalyst Deterioration Level for Bank 1. The Unit Conversion column indicates how to convert the raw data. Fig. 3a shows the raw test value as 255, which means the test value needs to be multiplied by.0039 to obtain the true number of.994. The Max Limit is.499 (128 x.0039). The conversion does not change the ultimate results; the PCM has determined that the Bank 1 Catalyst failed the specific test. Once you know the actual definitions of TID and CID, converting the values may not be necessary. Mode $06 data can be used as a baseline to determine if a particular component or monitor now passes the test following repairs. Let s take a closer look at the 1999 Toyota Tacoma. This vehicle came in with the malfunction indicator light (MIL) on. We checked for DTCs and a P0420 (Catalyst System Efficiency Below Threshold) was retrieved. From past experience I knew that Toyota provided Catalyst Monitor Mode $06 data. Figs. 1a, 1b, 3a and 3b show the available Catalyst Monitor data. The Mode $06 results validate that the failure is active as of the last drive cycle. What happens next depends on your diagnostic strategy. I ve seen the following three different approaches em- 68 March 2007
5 ployed to attack this problem. Eventually, most shops will arrive at the same conclusion, but in several cases, time and money were wasted. Shop 1. The technician retrieved the P0420 trouble code and decided to clear it and drive the vehicle around the block to see if code came back. The DTC did not come back right away, so the technician recommended the waitand-see approach. The customer took the vehicle back and within a few drive cycles the MIL light came back on. If the technician follows the same procedure to verify the DTC, he ll end up with the same results. What happened? The technician did not follow the recommended DTC enabling criteria sequence in order to verify the problem. For this particular P0420 DTC, the following enabling criteria apply: battery voltage, >11 volts; air temp, >14 F; coolant temp, >167 F; vehicle speed, 31 to 50 mph; engine speed, <3000 rpm; time in closed-loop, >20 seconds (while driving, not decelerating) and no conflicting DTCs. The duration of the test is approximately 20 seconds, once the appropriate conditions are met. If the PCM determines that the test value has exceeded the limit, a first-trip fault is set. It will take two failure trips before the MIL comes on. If the technician does not follow these recommendations, the test will not run. A critical point here is multiple drive cycles: It doesn t matter how long this vehicle is driven; the ignition switch has to be cycled off at least once to run the second test. Shop 2. This technician followed a similar procedure, but decided to check oxygen sensor operation. The O 2 sensors reacted. But the vehicle had 150,000 miles on it, so rather than recommend an expensive catalyst replacement, the shop recommended new O 2 sensors. The same road test approach was taken and the DTC did not return, so the technician thought the problem was fixed. Fig. 5 shows the Mode $06 data after the oxygen sensors were replaced. The test value was lower (.604 vs.994), but this was still over the limit and only the first-trip catalyst test. If the vehicle had been released to the customer, it would have come back soon. Additional notes about Fig. 5: The DTCs were cleared after the O 2 sensors were replaced, which cleared the I&M Readiness Monitors and DTCs. In the lower left-hand corner, notice that the catalyst and evap monitors are not complete and the MIL status is OFF, but there s one pending DTC (P0420). The initial Mode $06 test is enough to elevate the P0420 to pending status. Shop 3. This technician retrieves the DTC and checks Mode $06 data, which Fig. 5 This Mode $06 data was taken from the Tacoma after the oxygen sensors were replaced. The test value improved slightly after the change, but was still outside the test parameters. The catalyst needs to be replaced. Fig. 6 This is Mode $06 data taken from the Tacoma after the catalyst was replaced. The catalyst replacement corrected DTC P0420 and the value is now within test limits. March
6 Catalyst System Monitor Catalyst System Monitor B1S2 Heated Oxygen Sensor Monitor B1S2 Heated Oxygen Sensor Monitor Evap Vacuum Monitor.040 Leak Evap Vacuum Monitor.040 Leak Evap Vacuum Monitor.020 Leak Evap Vacuum Monitor.020 Leak Fig. 7a Fig. 7b The data shown in Fig. 7a was captured using the Bosch Diagnostics KTS-570 Bluetooth Wireless scan tool. A unique feature of the tool allows the technician to continuously monitor and chart Mode $06 data. This is useful when road-testing the vehicle following repairs. The screen capture in Fig. 7b shows the data from a road test taken from our test Tacoma after the catalyst was replaced. It took only an 80-second road test to verify that the catalyst corrected the P0420. confirms that the problem exists. Next, he researches the problem and follows the recommended service procedure, which recommends replacement of the catalyst. To confirm this repair the technician road-tests the vehicle following the enabling criteria recommendations. Fig. 6 shows the Mode $06 data after the catalyst was replaced. The Mode $06 test value is well below the test limit. All monitors are complete and there are no pending DTCs. This vehicle was properly repaired on the first attempt. The approach taken by the technician in Shop 3 can be used for virtually anything reported by Mode $06. Mode $06 test values create an excellent baseline target. The only downside is that for many vehicles the data is limited. But this is changing with the newer vehicles. Now here s a repair technique using Mode $06 that you may not have considered. If you live in an area where OBD II testing is performed, the issue of completing I&M Readiness Monitors can be difficult at times. I believe the key is not clearing the DTCs with the scan tool, which automatically resets the I&M Readiness Monitors, requiring extensive drive cycle time. It s preferable to allow the PCM to turn the MIL off naturally, which will normally take only two or three trips for many DTCs. The screen capture in Fig. 7a was taken from the 1999 Tacoma with the Bosch KTS-570 diagnostic scan tool in the OBD II generic mode. A really nice feature of this scan tool is its ability to request Mode $06 continuously and chart the data over time. Most OBD II generic scan tools do not offer this option. I wanted to be able to capture the Mode $06 changes as they occurred while I drove the truck, without having to watch the data closely. I already knew that the last catalyst Mode $06 test value exceeded the test limits, so the problem was active. I wanted to follow the enabling criteria for P0420 and see how long it would take to run the next test. The DTC was cleared. Fig. 7a shows that after 83 seconds of driving, TID $01-CID $01 changed from 0 to approximately 150 over the 128 limit. I repeated the test several times with similar results. Fig. 7b shows the road test after the catalyst was replaced. I repeated the same road test procedure and the test value increased slightly, to approximately 12, indicating replacement of the catalyst corrected the DTC P0420 test limits. In most cases, once the PCM sees two or three completed trips where the test value is within limits, the MIL should go out. The DTCs will erase after 40 warm-up cycles. In most OBD II programs vehicles don t fail for DTCs, only an illuminated MIL. In this Toyota P0420 example, the trips took approximately 80 seconds and I was able to turn the MIL off after three trips. If I had cleared the DTC and I&M Readiness Monitors, I would have spent approximately 30 minutes completing enough of the monitors for the vehicle to pass the state test. I can t guarantee this will work in all DTC situations, but it has saved me a lot of time. Mode $06 is a work in progress and it s getting better all the time. For some vehicle manufacturers the data is excellent, while others are working to improve its quality. The benefits of being able to baseline a failure prior to repairs and to verify that a test value is within limits after a repair is completed is priceless. It won t work in all situations, so you ll need to experiment with different vehicles to get comfortable. Options vary with each scan tool, so you ll need to pick one that provides the data and format you like. Mode $06 is one of many diagnostic options that can help you solve problems faster, so give it a try. Visit to download a free copy of this article. 72 March 2007
VAPOR TRAILS: FINDING & FIXING EVAPORATIVE SYSTEM FAULTS. by 1975 and established the U.S. Environmental
VAPOR TRAILS: FINDING & FIXING EVAPORATIVE SYSTEM FAULTS BY BOB PATTENGALE Current OBD II systems can detect evap system leaks too small to see, or even smell. Finding and fixing these and other system
More informationINDEX. 1.Safety Precautions and Warnings...3
INDEX 1.Safety Precautions and Warnings...3 2. General Information...5 2.1 On-Board Diagnostics (OBD) II... 5 2.2 Diagnostic Trouble Codes (DTCs)... 6 2.3 Location of the Data Link Connector (DLC)...7
More informationTable of Contents 1. INTRODUCTION GENERAL INFORMATION-ABOUT OBDII/EOBD PRODUCT DESCRIPTIONS OPERATIONS...11
Table of Contents 1. INTRODUCTION...1 2. GENERAL INFORMATION-ABOUT OBDII/EOBD...1 2.1 ON-BOARD DIAGNOSTICS (OBD) II...1 2.2 DIAGNOSTIC TROUBLE CODES (DTCS)...2 2.3 LOCATION OF THE DATA LINK CONNECTOR (DLC)...3
More informationDTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1) DTC P0430 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 2)
DIAGNOSTICS DTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1) 05551 05BNU11 DTC P0430 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 2) MONITOR DESCRIPTION The ECM uses sensors mounted before
More informationDTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1)
DTC P0420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD (BANK 1) 05195 05FNS02 MONITOR DESCRIPTION The ECM uses 2 sensors mounted before and after the threeway catalytic converter (TWC) to monitor its efficiency.
More informationAlternative Fuel Engine Control Unit
1999 Chevrolet/Geo Cavalier (CNG) Alternative Fuel Engine Control Unit Table 1: AF ECU Function Parameters The (AF ECU) controls alternative fuel engine operation. The control unit monitors various engine
More informationFixed Right First Time. Volvo Technicians, Service and Parts Managers
Tech-Net Notes Fixed Right First Time Volvo Technicians, Service and Parts Managers NO: 25-19 DATE: 6-30-2004 MODEL: 960-S/V90/850/S70/V70/C70 M. YEAR: 1996-1998 SUBJECT: Establishing Readiness for OBD
More information2002 ENGINE PERFORMANCE. Self-Diagnostics - RAV4. Before performing testing procedures, check for any related Technical Service Bulletins (TSBs).
2002 ENGINE PERFORMANCE Self-Diagnostics - RAV4 INTRODUCTION NOTE: Before performing testing procedures, check for any related Technical Service Bulletins (TSBs). To properly diagnosis and repair this
More information1. OBD II Readiness Monitors An important part of a vehicle s OBD II system is the Readiness Monitors, which are indicators used to find out if all
1. OBD II Readiness Monitors An important part of a vehicle s OBD II system is the Readiness Monitors, which are indicators used to find out if all of the emissions components have been evaluated by the
More informationChapter. On-Board Diagnostics and Scan Tools
Chapter 24 On-Board Diagnostics and Scan Tools Objectives After studying this chapter, you will be able to: Discuss the purpose and operation of onboard diagnostic systems. Explain the use of scan tools
More informationDTC P0174 Fuel Trim System Lean Bank 2
2000 Chevrolet/Geo S10 Pickup - 4WD DTC P0174 Fuel Trim System Lean Bank 2 Circuit Description In order to provide the best possible combination of driveability, fuel economy, and emission control, the
More informationHigh technology theft-prevention systems
Lemme In! Mazda 626 & MPV Immobilizer System High technology theft-prevention systems have hit the automotive market full-force. Several manufacturers now offer antitheft protection integrated with the
More informationUser s Manual XOB15091 OBD II / EOBD CODE READER. All Rights Reserved. Warranty and Service
5. Warranty and Service 5.1 Limited One Year Warranty The manufacturer/supplier warranty provided to customers for this product will be free from all defects in materials and workmanship for a period of
More information2002 Buick Rendezvous - AWD
2002 Buick Rendezvous - AWD DTC P0410 Description The control module activates the secondary air injection (AIR) system by grounding both the pump relay and the vacuum control solenoid control circuits.
More informationDTC P0134 OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1)
05 120 05CRQ 02 DTC P0134 OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1) CIRCUIT DESCRIPTION Refer to DTC P0130 on page 05 101. DTC No. DTC Detecting Condition Trouble Area P0134 After engine
More informationGROUP 13Ab. 13Ab-2 CONTENTS TROUBLESHOOTING STRATEGY.. DATA LIST REFERENCE TABLE... 13Ab-29 TROUBLE CODE DIAGNOSIS...
13Ab-1 GROUP 13Ab CONTENTS TROUBLESHOOTING STRATEGY.. 13Ab-2 DATA LIST REFERENCE TABLE... 13Ab-29 TROUBLE CODE DIAGNOSIS..... 13Ab-2 FAIL-SAFE FUNCTION REFERENCE TABLE........................ 13Ab-20 DIAGNOSTIC
More informationDTC P0134 OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1)
05114 DIAGNOSTICS 05CRQ04 DTC P0134 OXYGEN SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 1) CIRCUIT DESCRIPTION Refer to DTC P0130 on page 0596. DTC No. DTC Detecting Condition Trouble Area After
More informationChapter 20 OBD-II Diesel Monitors
Light Vehicle Diesel Engines First Edition Chapter 20 OBD-II Diesel Monitors LEARNING OBJECTIVES (1 of 2) 20.1 Prepare for the Light Vehicle Diesel Engine (A9) ASE certification fuel system diagnosis and
More informationOBD II DRIVE CYCLE DATE: May, 2003
Page 1 of 7 SUBJECT : OBD II DRIVE CYCLE DATE: May, 2003 No: MODEL: 1996 98 models CIRCULATE TO: [ ] GENERAL MANAGER [ ] PARTS MANAGER [X] TECHNICIAN [X] SERVICE ADVISOR [X] SERVICE MANAGER [X] WARRANTY
More informationDTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage
Document ID# 546741 2000 Chevrolet Chevy K Silverado - 4WD Print DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage Circuit Description The engine coolant temperature
More informationPOWERTRAIN CONTROL MODULE (PCM) - NGC
2011 Dodge or Ram Truck Grand Caravan V6-3.6L Vehicle > ALL Diagnostic Trouble Codes ( DTC ) > Testing and Inspection > P Code Charts > P0128 POWERTRAIN CONTROL MODULE (PCM) - NGC P0128-THERMOSTAT RATIONALITY
More informationThe engine is running. DTC P0351, P0352, P0353, and P0354 run continuously once the above condition has been met.
Page 1 of 6 DTC P0351-P0354 Circuit Description DTCs P0351 through P0354 Ignition Coil Primary/Secondary Feedback Circuit diagnostic monitors the primary circuitry of individual ignition coils for the
More informationFor. Code Reader. User Manual
For OBD2 Code Reader User Manual http://www.motodok.com Table of Contents 1. Description... 2 2. Features... 2 3. Getting Started... 3 1. Connect Code Reader to Vehicle's Test Connector... 3 2. Read Diagnostic
More informationUSING SCAN TOOL MEMORY
Table of Contents SAFETY PRECAUTIONS SAFETY FIRST!... 1 BATTERY REPLACEMENT... 6 SCAN TOOL CONTROLS CONTROLS AND INDICATORS... 3 DISPLAY FUNCTIONS... 4 USING THE SCAN TOOL CODE RETRIEVAL PROCEDURE... 7
More informationDTC P0420. Circuit Description. Conditions for Running the DTC.
Page 1 of 5 DTC P0420 2003 Buick LeSabre LeSabre (VIN H) Service Manual Document ID: 792202 Circuit Description In order to control emissions of hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen
More informationOBDII INSPECTION GUIDE
OBDII INSPECTION GUIDE Texas Department of Public Safety September 2002 Prepared by: dkc de la Torre Klausmeier Consulting, Inc. ª2002 dkc Table of Contents GLOSSARY OF OBD TERMS...2 INTRODUCTION...12
More informationSYSTEM READINESS TEST (SRT) DRIVE PATTERNS
Classification: Reference: D ate: EC98-001g NTB98-018g June 7, 2013 SYSTEM READINESS TEST (SRT) DRIVE PATTERNS This bulletin has been amended. Additional changes were made on page 9. Please discard all
More informationModule 12 Throttle Position (TP) Sensor
Module 12 Throttle Position (TP) Sensor Author: Grant Swaim E-mail: sureseal@nr.infi.net URL: www.tech2tech.net Phone: (336) 632-9882 Fax: (336) 632-9688 Postal Address: Tech-2-Tech Website PO Box 18443
More informationTable of Contents. 5. Warranty and Service...29
Table of Contents 1. Safety Precautions and Warnings...2 2. General Information 2.1 On-Board-Diagnostics (OBD) II......3 2.2 Diagnostic Trouble Codes (DTCs) 3 2.3 Location of the Data Link Connector (DLC)
More informationDiagnostic Report. Monitor Status Report. Page 1 of 12. Date: 12/18/2016 9:17:03 PM
file:///c:/users/rbirkenholz/app/local/microsoft/windows/temporary%20internet... Page 1 of 12 Diagnostic Report Created by OBDLink - OBD Solutions www.obdsoftware.net Date: 12/18/2016 9:17:03 PM VIN: 1D8HB58287F580896
More informationModel Year: 2007 Model: Tacoma Doc ID: RM H800NX
Page 1 of 12 Last Modified: 5-7-2008 5.1 C From: 200608 Model Year: 2007 Model: Tacoma Doc ID: RM0000013H800NX Title: 2TR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2A00: A/F Sensor Circuit Slow Response (Bank
More informationPhotoillustration: Harold A. Perry; images: Thinkstock & Ford
30 March 2014 WHAT S NEW IN EVAP Photoillustration: Harold A. Perry; images: Thinkstock & Ford TESTING BY BOB PATTENGALE Automotive technology evolves. Changes may improve the ownership experience or allow
More informationInspection/Maintenance Evaporative Emission System Set
Page 1 of 5 2001 Chevrolet S10 Pickup - 2WD Blazer, Bravada, Envoy, Jimmy, S10 Pickup, Sonoma VIN S/T Service Manual Engine Engine Controls - 2.2L L43 Diagnostic Information and Procedures Document ID:
More informationSYSTEM READINESS TEST (SRT) DRIVE PATTERNS
Classification: Reference: Date: EC98-001f NTB98-018f November 7, 2012 SYSTEM READINESS TEST (SRT) DRIVE PATTERNS This bulletin has been amended. Several Changes were made on page 9. Please discard all
More informationCatalyst System Efficiency Below Threshold (Bank 1)
190 1NZ-FXE EINE CONTROL SYSTEM SFI SYSTEM DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1) MONITOR DCRIPTION The ECM uses 2 sensors mounted before and after the three-way catalytic converter
More informationDTC P0172 Fuel Trim System Rich
Page 1 of 6 1997 Chevrolet Cavalier Cavalier, Sunfire (VIN J) Service Manual Document ID: 47788 DTC P0172 Fuel Trim System Rich System Description A Closed Loop air/fuel metering system is used to provide
More informationATASA 5 th. Engine Performance Systems. Please Read The Summary. ATASA 5 TH Study Guide Chapter 25 Pages Engine Performance Systems 100 Points
ATASA 5 TH Study Guide Chapter 25 Pages 725 763 100 Points Please Read The Summary 1. Engine systems are those responsible for how an engine runs. Performance Emission Control Electronic 2. The correct
More informationWaiver Repair Cost Limit To Increase July 1st
The Analyzer T H E W I S C O N S I N V E H I C L E I N S P E C T I O N P R O G R A M Volume 1, Issue 14 Waiver Repair Cost Limit To Increase July 1st The repair cost limit for all model year vehicles subject
More informationTechnical Service Bulletin
Number 02-36-030 Subject OBD-II READINESS TEST DRIVE CYCLE FOR 1996-1998 SONATA Date Model DECEMBER, 2002 1996-1998 SONATA DESCRIPTION: This TSB describes Drive Cycles which may assist the vehicle s OBD-II
More informationDTC P0131 HO2S CIRCUIT LOW VOLTAGE (BANK 1/SENSOR 1)
2008 Kia Sorento 3.3L Eng LX DTC P0131 HO2S CIRCUIT LOW VOLTAGE (BANK 1/SENSOR 1) COMPONENT LOCATION Fig 1: Identifying HO2S GENERAL DESCRIPTION In order to control emissions of the CO, HC and x components
More informationDTC P0171 SYSTEM TOO LEAN (BANK 1) DTC P0174 SYSTEM TOO LEAN (BANK 2)
05498 DIAGNOSTICS DTC P0171 SYSTEM TOO LEAN (BANK 1) 05EXR06 DTC P0172 SYSTEM TOO RICH (BANK 1) DTC P0174 SYSTEM TOO LEAN (BANK 2) DTC P0175 SYSTEM TOO RICH (BANK 2) CIRCUIT DESCRIPTION The fuel trim is
More informationBY BOB PATTENGALE. Photoillustration: Harold Perry; photos: Jupiter Images & Wieck Media
42 June 2008 ESCAPE ROUTE BY BOB PATTENGALE Photoillustration: Harold Perry; photos: Jupiter Images & Wieck Media Electronic stability control will be a mandatory safety system on 2012 passenger vehicles,
More informationENGINE 01 02A 1. Toc of SCT ON-BOARD DIAGNOSTIC [ENGINE. Toc of SCT 01 02A ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (ZM)] 01 02A
ENGINE 01 SECTION Toc of SCT ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (ZM)]...01-02A ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (FS)]...01-02B ON-BOARD DIAGNOSTIC [CRUISE CONTROL SYSTEM].......01-02C
More informationHappy Birthday OBD II Emission Control System becomes diagnostic tool
FEATURE ARTICLE Happy Birthday OBD II Emission Control System becomes diagnostic tool 4 Bring out the birthday cake and light the candles, the second generation of onboard diagnostics, universally known
More informationComputers and Control Systems: Monitors, Trips, Drive Cycles and Readiness Codes
1998 Volvo V70 AWD L5-2.4L Turbo VIN 56 B5254T Page 1 Computers and Control Systems: Monitors, Trips, Drive Cycles and Readiness Codes Generic Drive Cycle Readiness Code Resetting Procedure (Generic Drive
More information(P0135/P0155), (P0141/P0161), (P1131/P1151), (P1132/P1152). To further clarify this, see the more detailed scenario as follows:
1. Always reset KAM after performing a repair: After performing a repair on a vehicle with the MIL on, and/or DTCs present, always clear KAM. When a malfunction is present, the PCM adapts (attempts to
More informationGAS P013C-O2 SENSOR 2/2 SLOW RESPONSE - RICH TO LEAN
2008 Jeep Truck Grand Cherokee 4WD V8-5.7L Vehicle > ALL Diagnostic Trouble Codes ( DTC ) > Testing and Inspection > P Code Charts > P013C GAS P013C-O2 SENSOR 2/2 SLOW RESPONSE - RICH TO LEAN https://my.alldata.com/repair/#/repair/article/44404/component/3926/itype/423/nonstandard/1175544
More informationG - TESTS W/CODES - 2.2L
G - TESTS W/CODES - 2.2L 1994 Toyota Celica 1994 ENGINE PERFORMANCE Toyota 2.2L Self-Diagnostics Celica INTRODUCTION If no faults were found while performing F - BASIC TESTING, proceed with self-diagnostics.
More informationREADINESS MONITOR DRIVE PATTERN
24 READINS MONITOR DRIVE PATTERN 1. PURPOSE OF READINS TTS The On-Board Diagnostic (OBD II) system is designed to monitor the performance of emission related components, and indicate any detected abnormalities
More informationTHE witech SOFTWARE IS REQUIRED TO BE AT THE LATEST RELEASE BEFORE PERFORMING THIS PROCEDURE.
NUMBER: 18-057-15 GROUP: Vehicle Performance DATE: July 25, 2015 This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced,
More informationTable of Contents. CarScan+OBD1
Table of Contents INTRODUCTION WHAT IS OBD?... 1 YOU CAN DO IT!... 2 SAFETY PRECAUTIONS SAFETY FIRST!... 3 ABOUT THE SCAN TOOL VEHICLES COVERED... 5 BATTERY REPLACEMENT... 6 SCAN TOOL CONTROLS CONTROLS
More informationOBD2DISPLAY MANUAL. 195 mm Length, 81 mm Width, 32 mm Height, OBDII connector + cable 1500 mm
OBD2DISPLAY MANUAL 1. SAFETY PRECAUTIONS AND WARNINGS To prevent personal injury or damage to vehicles or the car tool, read this instruction manual first and observe the following safety precautions.
More informationSection 1 Introduction to Engine Control System Processes and Diagnostic Tools
Section 1 Introduction to Engine Control System Processes and Diagnostic Tools Vehicle Break-out Box 80-Pin Data Cable I/P Cable I/P Port 50-Pin Data Cable Vehicle ECU Harness ECU Interface Box To Vehicle
More informationOn Board Diagnostics (OBD) Monitors
2007 PCED On Board Diagnostics SECTION 1: Description and Operation Procedure revision date: 03/29/2006 On Board Diagnostics (OBD) Monitors OBD-I, OBD-II and Engine Manufacturer Diagnostics (EMD) Overview
More information1 of 13 10/17/2016 1:36 PM
1 of 13 10/17/2016 1:36 PM DTC P2195 Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) DTC P2196 Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) DTC P2197 Oxygen (A/F) Sensor Signal Stuck
More informationSAFETY PRECAUTIONS SAFETY FIRST!... 1 ABOUT THE CODE READER CONTROLS AND INDICATORS... 3 DISPLAY FUNCTIONS... 4
Table of Contents SAFETY PRECAUTIONS SAFETY FIRST!... 1 ABOUT THE CODE READER CONTROLS AND INDICATORS... 3 DISPLAY FUNCTIONS... 4 USING THE CODE READER CODE RETRIEVAL PROCEDURE... 7 VIEWING ABS DTCs...
More informationP0401-EGR SYSTEM PERFORMANCE
P0401-EGR SYSTEM PERFORMANCE P0401-EGR SYSTEM PERFORMANCE http://dh.identifix.com/searchfixes/index?roid=176514061&vid=2189101&vsm=2&locationid=2#kw=p0401&soption=1&vetid=8&stmode=1&p 1/6 For a complete
More informationTHE witech SOFTWARE LEVEL MUST BE AT RELEASE **15.04** OR HIGHER TO PERFORM THIS PROCEDURE.
2014 RAM 3500 HD 6.7L Eng Big Horn FLASH: 6.7L DIAGNOSTIC AND SYSTEM IMPROVEMENTS TECHNICAL SERVICE BULLETIN Reference Number(s): 18-045-15, Date of Issue: May 20, 2015 CHRYSLER: 2014 Ram 2500 Pick Up
More information2001 Chevrolet Corvette ACCESSORIES & EQUIPMENT Cruise Control Systems - Corvette
2001 ACCESSORIES & EQUIPMENT Cruise Control Systems - Corvette DESCRIPTION Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions. Steep grades
More informationVerified Fix #1 Tool Data Diagnostic Trouble Code Information Report Customer #1 VIN: JT8BL69SX4G015327 Customer Name: Year: 2004 Customer Phone#: 123-123-1234 Make: Lexus Report#: 162 Model: GS 430 Date
More information01 02B ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (FS)]
ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (FS)] CONTROL SYSTEM WIRING DIAGRAM [FS]............................ 2 CONTROL SYSTEM DEVICE AND CONTROL RELATIONSHIP CHART [FS]........ 4 Engine Control System............
More informationPowertrain Control Software
2007 PCED On Board Diagnostics SECTION 1: Description and Operation Procedure revision date: 03/29/2006 Powertrain Control Software Computer Controlled Shutdown The powertrain control module (PCM) controls
More informationDTC P1415 Secondary Air Injection (AIR) System Bank 1
Page 1 of 5 2000 GMC Truck GMC K Sierra - 4WD Sierra, Silverado, Suburban, Tahoe, Yukon (VIN C/K) Service Manual Document ID: 546887 DTC P1415 Secondary Air Injection (AIR) System Bank 1 Circuit Description
More informationFasDiag JD101 Code Reader. User Manual. OBDII Car Diagnostic Scanner
TM FasDiag JD101 Code Reader User Manual OBDII Car Diagnostic Scanner Introduction Thank you very much for choosing FasDiag JD101OBDII Car Diagnostic Scanner. Please read this manual before using the product
More informationDTC P0441 EVAPORATIVE EMISSION CONTROL SYSTEM INCORRECT PURGE FLOW DTC P0446 EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL MALFUNCTION
05180 DIAGNOSTICS DTC P0441 EVAPORATIVE EMISSION CONTROL SYSTEM INCORRECT PURGE FLOW 05DJV01 DTC P0446 EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL MALFUNCTION CIRCUIT DESCRIPTION The vapor pressure
More informationDTC P1336 Crankshaft Position (CKP) System Variation Not Learned
Page 1 of 5 Document ID# 243256 1998 Chevrolet/Geo Express Print DTC P1336 Crankshaft Position (CKP) System Variation Not Learned Circuit Description The crankshaft position (CKP) sensor
More informationDisclaimer. Safety Precautions and Warnings. NexLink NL102 User Manual
Disclaimer All information, illustrations, and specifications contained in this manual are based on the latest information available at the time of publication. The right is reserved to make change at
More informationREADINESS MONITOR DRIVE PATTERN
1GR-FE ENGINE CONTROL SYSTEM SFI SYSTEM 25 Contents READINS MONITOR DRIVE PATTERN PURPOSE OF READINS TTS The On-Board Diagnostic (OBD II) system is designed to monitor the performance of emission related
More informationCatalytic Failures. Engine running too hot.
Catalytic Failures It is not uncommon for technicians to misdiagnose a driveability or emissions issue by blaming the converter. In many cases, it s not the converter s fault, but rather one of the engine
More informationSAFETY PRECAUTIONS Warning: Read and understand all instructions in this manual. Use appropriate personal safety equipment including hearing and eye p
SAFETY PRECAUTIONS Warning: Read and understand all instructions in this manual. Use appropriate personal safety equipment including hearing and eye protections when using the scanner in or near the vehicle
More informationDTC P0171 SYSTEM TOO LEAN (BANK 1) DTC P0172 SYSTEM TOO RICH (BANK 1) DTC P0174 SYSTEM TOO LEAN (BANK 2) DTC P0175 SYSTEM TOO RICH (BANK 2)
05155 05NZ501 DTC P0171 SYSTEM TOO LEAN (BANK 1) DTC P0172 SYSTEM TOO RICH (BANK 1) DTC P0174 SYSTEM TOO LEAN (BANK 2) DTC P0175 SYSTEM TOO RICH (BANK 2) CIRCUIT DESCRIPTION These DTCs indicate that the
More informationTable of Contents. 3120f
Table of Contents INTRODUCTION WHAT IS OBD?... 1 YOU CAN DO IT!... 2 SAFETY PRECAUTIONS SAFETY FIRST!... 3 ABOUT THE DIAGNOSTIC TOOL VEHICLES COVERED... 5 BATTERY REPLACEMENT... 6 DIAGNOSTIC TOOL CONTROLS
More informationDTC P0441 EVAPORATIVE EMISSION CONTROL SYSTEM INCORRECT PURGE FLOW DTC P0446 EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL CIRCUIT
05202 DTC P0441 EVAPORATIVE EMISSION CONTROL SYSTEM INCORRECT PURGE FLOW 05FNT02 DTC P0446 EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL CIRCUIT CIRCUIT DESCRIPTION The vapor pressure sensor and VSV
More information2. A vehicle s engine module can detect engine misfiring and air-fuel mixture problems.
24 Chapter On-Board Diagnostics and Scan Tools Name Instructor Date Score Objective: After studying this chapter, you will have a basic understanding of automotive on-board diagnostic capabilities and
More informationP219B-BANK 2 AIR-FUEL RATIO IMBALANCE
- LC - DODGE CHALLENGER - 6.L V8 SRT HEMI MDS P9B-BANK AIR-FUEL RATIO IMBALANCE For a complete wiring diagram, refer to the Wiring Information. BATTERY A0 0 87 87A RELAY- RUN/ START ASSEMBLY- POWER DISTRIBUTION
More informationDTC P1811 Maximum Adapt and Long Shift
2000 Buick Century DTC P1811 Maximum Adapt and Long Shift Circuit Description The transmission pressure is modified by an adaptive modifier which controls the shift execution time. This test checks the
More informationDTC P0135, P0141, P0155, or P0161 (w/lr4 and LM7 w/ Delphi HO2S)
Page 1 of 5 2001 GMC Truck GMC K Sierra - 4WD Sierra, Silverado, Suburban, Tahoe, Yukon (VIN C/K) Service Manual DTC P0135, P0141, P0155, or P0161 (w/lr4 and LM7 w/ Delphi HO2S) Circuit Description This
More information1 of 8 9/11/2015 3:59 PM
1 of 8 9/11/2015 3:59 PM P013C-O2 SENSOR 2/2 SLOW RESPONSE - RICH TO LEAN For complete wiring diagrams refer to Diagrams/Electrical. - When Monitored: With the engine running, vehicle speed between 32
More informationDTC P1518 Throttle Actuator Control (TAC) Module Serial Data Circuit
Page 1 of 6 DTC P1518 Throttle Actuator Control (TAC) Module Serial Data Circuit Circuit Description The throttle acuator control (TAC) module and the powertrain control module (PCM) communicate via a
More information2UZ-FE ENGINE CONTROL SYSTEM SFI SYSTEM
160 2UZ-FE EINE CONTROL SYSTEM SFI SYSTEM DTC P0171 System Too Lean (Bank 1) DTC P0172 System Too Rich (Bank 1) DTC P0174 System Too Lean (Bank 2) DTC P0175 System Too Rich (Bank 2) DCRIPTION The fuel
More informationVehicle Level Technical Service Bulletins All Technical Service Bulletins Engine Controls - Engine Idle Speed 25RPM Too High
Select Vehicle New TSBs Technician's Reference Component Search: Conversion Calculator 2005 Nissan-Datsun Maxima V6-3.5L (VQ35) Vehicle Level Technical Service Bulletins All Technical Service Bulletins
More informationDocument ID: General Motors Corporation. All rights reserved.
Page 1 of 6 2005 Chevrolet TrailBlazer - 4WD Envoy, Rainier, TrailBlazer, Ascender (VIN S/T) Service Manual Document ID: 1489377 DTC P0053 or P0054 Circuit Description The heated oxygen sensor (HO2S) must
More informationSYSTEM READINESS TEST (SRT) DRIVE PATTERNS
Classification: Reference: Date: EC98-001c NTB98-018c January 3, 2002 SYSTEM READINESS TEST (SRT) DRIVE PATTERNS This amended version of NTB98-018b contains an updated Service Procedure and updated ECM
More information2UZ-FE ENGINE CONTROL SYSTEM SFI SYSTEM. DTC No. DTC Detection Condition Trouble Area
2UZ-FE EINE CTROL SYSTEM SFI SYSTEM 399 DTC DTC P2444 P2445 Secondary Air Injection System Pump Stuck On Bank1 Secondary Air Injection System Pump Stuck Off Bank1 DCRIPTI Refer to DTC P0412 (See page -208).
More informationABOUT THE DIAGNOSTIC TOOL
Table of Contents INTRODUCTION WHAT IS OBD?... 1 YOU CAN DO IT!... 2 SAFETY PRECAUTIONS SAFETY FIRST!... 3 ABOUT THE DIAGNOSTIC TOOL VEHICLES COVERED... 5 BATTERY REPLACEMENT... 6 DIAGNOSTIC TOOL CONTROLS
More informationRE5R05A. Technical Bulletin # Computer Diagnostics
Transmission: Subject: Application: Issue Date: Computer Diagnostics Nissan, Infinity July, 2008 Computer Diagnostics There are two separate controller systems that are used for the transmission applications.
More informationDIAGNOSTIC TROUBLE CODE (DTC) P0430 AMPLITUDE RATIO OF POST AND PRE HEATED OXYGEN SENSORS BANK 2 (3.2L DOHC)
1F366 ENGINE CONTROLS DIAGNOSTIC TROUBLE CODE (DTC) P0430 AMPLITUDE RATIO OF POST AND PRE HEATED OXYGEN SENSORS BANK 2 (3.2L DOHC) System Description The vehicle with 6 cylinder has two independent manifold
More informationNexLink NL102PLUS User Manual NEXAS
NEXAS www.nexastech.com V1.0 Disclaimer All information, illustrations, and specifications contained in this manual are based on the latest information available at the time of publication. The right is
More informationDTC P0341 Camshaft Position (CMP) Sensor Performance
Page 1 of 5 1999 Buick Century Century, Regal VIN W Service Manual Document ID: 345654 DTC P0341 Camshaft Position (CMP) Sensor Performance Circuit Description During cranking, the Ignition Control Module
More informationDTC P0420 or P0430. Circuit Description. DTC Descriptors. Conditions for Running the DTC
Page 1 of 5 2005 Cadillac STS STS (VIN D) Service Manual Engine Engine Controls - 4.6L (LH2) Diagnostic Information and Procedures DTC P0420 or P0430 Circuit Description A three-way catalytic converter
More information2002 Chevrolet Silverado 1500
For the specific DTCs required for each system, see table. Systems such as fuel delivery, misfire, and comprehensive components may not be listed in a system status list. These tests run continuously on
More informationDTC P0171, P0172, P0174, or P0175
Page 1 of 6 2009 Pontiac G8 G8 Service Manual Document ID: 2076050 DTC P0171, P0172, P0174, or P0175 Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic
More informationDocument ID# Chevrolet Corvette
Page 1 of 6 Document ID# 610892 2000 Chevrolet Corvette Feedback Print D T C P 0 4 6 2 F u e l L e v e l S e n s o r C i r c u i t L o w V o l t a g e C i r c u i t D e s c r i p t i
More informationGROUP 13Ab. 13Ab-2 CONTENTS TROUBLESHOOTING STRATEGY.. DATA LIST REFERENCE TABLE... 13Ab-28 TROUBLE CODE DIAGNOSIS...
13Ab-1 GROUP 13Ab CONTENTS TROUBLESHOOTING STRATEGY.. 13Ab-2 DATA LIST REFERENCE TABLE... 13Ab-28 TROUBLE CODE DIAGNOSIS..... 13Ab-2 FAIL-SAFE/BACKUP FUNCTION TABLE........................ 13Ab-20 DIAGNOSTIC
More informationLAUNCH TECH USA. CRP 12X Premium Manual
LAUNCH TECH USA CRP 12X Manual General Notice Other product names used herein are for identification purposes only and may be trademarks of their respective owners LAUNCH disclaims any and all rights in
More informationNo signal from the CMP sensor for 3 seconds with the PCM receiving an engine start signal.
DTC P0340 Circuit Description The DTC P0340 Camshaft Position (CMP) Sensor Circuit diagnostic monitors the output of the CMP sensor. The CMP sensor is located in the distributor and consists of a signal
More informationDTC P20B9-P20BF or P20C0-P20C4
Page 1 of 8 2014 Chevrolet Silverado 2500/3500-4WD Document ID: 3339878 DTC P20B9-P20BF or P20C0-P20C4 Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic
More informationFOR HELP WITH USING witech FOR ECU FLASH REPROGRAMMING, CLICK ON THE APPLICATION S HELP TAB.
NUMBER: 18-091-16 GROUP: Vehicle Performance DATE: July 26, 2016 This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced,
More informationDI 3 ENGINE DIAGNOSTICS DI00H 22 PRE CHECK
PRECHECK DI3 DI00H22 1. DIAGNOSIS SYSTEM (a) Description When troubleshooting OBD II vehicles, the only difference from the usual troubleshooting procedure is that you connect to the vehicle the OBD II
More informationDYNAMIC DUO. Lab scopes and current
DYNAMIC DUO Combining the data acquisition capabilities of a lab scope with the versatility of a current probe gives you a powerful diagnostic tandem that s awfully hard to beat. BY MARK WARREN Lab scopes
More information