DTC B1479/79: Flow Sensor Circuit
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1 1 of 5 9/29/ :17 PM 2010 Toyota RAV4 2.5L Eng Base DTC B1479/79: Flow Sensor Circuit DESCRIPTION The flow sensor is built into the compressor, and outputs a signal indicating the flow rate of the refrigerant. The air conditioning amplifier converts the received signal to refrigerant flow rate data according to the characteristics of the sensor, which it then sends to the ECM via CAN communication. DTC Code DTC Detection Condition Trouble Area B1479/79 The ignition switch is ON*1, the A/C is on and the flow sensor circuit has an open or short circuit. The ignition switch is ON*1 and the flow sensor is stuck. Flow sensor (compressor and pulley) Harness or connector between flow sensor and air conditioning amplifier Air conditioning amplifier *1: As the flow sensor measures the flow rate of the refrigerant in the air conditioning system, it is necessary to turn the ignition switch to ON in order to check the state of the flow sensor. WIRING DIAGRAM Fig 1: Flow Sensor - Wiring Diagram Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. INSPECTION PROCEDURE PROCEDURE 1. READ VALUE USING TECHSTREAM (FLOW SENSOR) a. Connect the Techstream to the DLC3. b. Turn the ignition switch to ON and turn the Techstream on.
2 2 of 5 9/29/ :17 PM c. Check the flow sensor voltage in the Data List. Air Conditioner Tester Display Measurement Item/Range Normal Condition Diagnostic Note Flow sensor RESULT Flow sensor/min.: 0.0 V, Max.: 5.0 V Flow sensor voltage displayed Open circuit: 4.7 V or moreshort circuit: 0.3 V or less Result Proceed to 4.7 V or more: Open circuit(a/c is on) A 0.3 V or less: Short circuit(a/c is on) A Circuit is not open or shorted B 2. B See step 5 A: Go to next step CHECK HARNESS AND CONNECTOR (FLOW SENSOR - AIR CONDITIONING AMPLIFIER) a. Disconnect the B66 flow sensor connector.
3 3 of 5 9/29/ :17 PM Fig 2: Identifying B66 Flow Sensor And E37 Amplifier Connector Terminals Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. b. Disconnect the E37 amplifier connector. c. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B66-3 (QUFL) - E37-7 (FLOQ) Always Below 1 Ω B66-1 (S5FL) - E37-10 (S5-1) Always Below 1 Ω
4 4 of 5 9/29/ :17 PM B66-2 (SGFL) - E37-13 (SG-4) Always Below 1 Ω E37-7 (FLOQ) - Body ground Always 10 kω or higher E37-10 (S5-1) - Body ground Always 10 kω or higher E37-13 (SG-4) - Body ground Always 10 kω or higher NG REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to next step 3. REPLACE FLOW SENSOR (COMPRESSOR AND PULLEY) a. Replace the flow sensor (compressor and pulley) with a normal one. Refer to REMOVAL. NEXT: Go to next step 4. CHECK FOR DTC a. Clear the DTCs. Refer to DTC CHECK/CLEAR. b. Check for DTCs. Refer to DTC CHECK/CLEAR. OK NG See step 8 OK END DTC B1479 is not output. 5. READ VALUE USING TECHSTREAM (FLOW SENSOR) a. Check the flow sensor voltage in the Data List. Air Conditioner Tester Display Measurement Item/Range Normal Condition Diagnostic Note Flow sensor RESULT Flow Sensor/Min.: 0.0 V, Max.: 5.0 V Flow sensor voltage displayed Open circuit: 4.7 V or moreshort circuit: 0.3 V or less Result Proceed to Sensor is stuck in an intermediate position a. Engine idling b. A/C switch off A c. Sensor voltage is 3.76 V or less and does not change for 8.5 minutes or more
5 5 of 5 9/29/ :17 PM Sensor is stuck at zero position a. Engine idling b. A/C switch on A c. Sensor voltage is 3.76 V or more and does not change for 8.5 minutes or more Sensor is not stuck B B See step 7 A: Go to next step 6. REPLACE FLOW SENSOR (COMPRESSOR AND PULLEY) a. Replace the flow sensor (compressor and pulley) with a normal one. Refer to REMOVAL. NEXT: Go to next step 7. CHECK FOR DTC a. Clear the DTCs. Refer to DTC CHECK/CLEAR. b. Check for DTCs. Refer to DTC CHECK/CLEAR. OK NG See step 8 OK END DTC B1479 is not output. 8. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to REMOVAL
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DTC P0451 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH RANGE/PERFORMANCE 05255 052NT23 DTC P0452 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE SENSOR/SWITCH LOW INPUT DTC P0453 EVAPORATIVE
DTC C1252 / 52 Hydraulic Brake Booster Pump Motor ON Time Abnormally Long
DIAGNOSTICS DI0 DI6BT08 DTC C / Hydraulic Brake Booster Pump Motor ON Time Abnormally Long CIRCUIT DESCRIPTION DTC No. DTC Detecting Condition Trouble Area C / After the ignition switch has been turned
1999 Toyota RAV ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4 DESCRIPTION WARNING: Deactivate air bag system before performing any service operation. See AIR BAG RESTRAINT SYSTEMS article. DO NOT apply electrical
https://w05.dealerconnect.chrysler.com/service/mds2002/common/jsp/xml.jsp?xmlurl=... P2149-BANK 2 (CYLINDERS 4-6) SHORTED HIGH OR LOW
Page 1 of 10 P2149-BANK 2 (CYLINDERS 4-6) SHORTED HIGH OR LOW Page 2 of 10 For a complete wiring diagram Refer to the Wiring Information. Page 3 of 10 When Monitored: While the engine is running. Set Condition:
DTC B1140/32 Side Airbag Sensor Assembly (RH) Malfunction
DI342 DIAGNOSTICS DI6ZW03 DTC B1140/32 Side (RH) Malfunction CIRCUIT DESCRIPTI The side airbag sensor assembly (RH) consists of the safing sensor, diagnosis circuit and lateral deceleration sensor, etc.
Taillight Relay Circuit
GHTI GHTI SYSTEM 63 Taillight Relay Circuit DESCRIPTION The headlight dimmer switch sends a signal to the main body ECU. WIRI DIAGRAM Main Body ECU TAIL To Battery TAIL TRLY Outer Rear View Mirror Illumination
Page 1 of 6 1Search P063D 2008 Dodge Pickup 6.7L Eng R2500 P063D-GENERATOR VOLTAGE SENSE HIGH Page 2 of 6 Circuit Schematic Fig 1: Generator Circuit Schematic Courtesy of CHRYSLER LLC Additional Wiring
DTC P2237 Oxygen Sensor Pumping Current Circuit / Open (for A/F sensor) (Bank 1 Sensor 1)
DI430 EINE (5VZFE) DIB2801 DTC P2237 Oxygen Sensor Pumping Current Circuit / Open (for A/F sensor) (Bank 1 Sensor 1) DTC P2238 Oxygen Sensor Pumping Current Circuit / Low (for A/F sensor) (Bank 1 Sensor
1GR-FE ENGINE CONTROL SYSTEM SFI SYSTEM
348 DTC DTC P200 P203 /F Sensor Circuit Slow Response (ank 1 Sensor 1) /F Sensor Circuit Slow Response (ank 2 Sensor 1) DTC P200 indicates malfunctions related to the bank 1 /F sensor. DTC P203 indicates
DIAGNOSTIC TROUBLE CODE CHART
DIAGNOSTIC TROUBLE CODE CHART NOTICE: When removing the part, turn the ignition switch OFF. 05319 HINT: Using SST 0984318040, connect the terminals Tc and CG of DLC3. If any abnormality is not found when
DI-377 SUPPLEMENTAL RESTRAINT SYSTEM DI58G-01 PRE-CHECK
W01632 PRECHECK DI377 DI58G01 1. SRS WARNING LIGHT CHECK (a) Turn the ignition switch to the ACC or ON position and check that the SRS warning light lights up. (b) Check that the SRS warning light goes
Model Year: 2008 Model: ES350 Doc ID: RM000000PFA04GX
1 of 13 Last Modified: 7-13-2007 Service Category: Engine/Hybrid System 1.6 C Section: Engine Control Model Year: 2008 Model: ES350 Doc ID: RM000000PFA04GX Title: 2GR-FE EINE CONTROL SYSTEM: SFI SYSTEM:
DTC P0351 Ignition Coil A Primary/Secondary Circuit. DTC P0352 Ignition Coil B Primary/Secondary Circuit
DI06 DIAGNOSTICS EINE DIAFC0 DTC P05 A Primary/Secondary Circuit DTC P05 B Primary/Secondary Circuit DTC P05 C Primary/Secondary Circuit DTC P05 D Primary/Secondary Circuit CIRCUIT DESCRIPTION A Direct
DTC P3401, P3425, P3441, or P3449
Page 1 of 5 2008 Chevrolet Avalanche - 4WD Avalanche, Escalade, Suburban, Tahoe, Yukon VIN C/K Service Manual Document ID: 1914310 DTC,,, or Diagnostic Instructions Perform the Diagnostic System Check
DTC P1300 Igniter Circuit Malfunction No.1. DTC P1310 Igniter Circuit Malfunction No.2
DIAGNOSTICS EINE (5SFE) DI63 DI0G06 DTC P300 Igniter Circuit Malfunction No. DTC P30 Igniter Circuit Malfunction No.2 CIRCUIT DESCRIPTION The ECM determines the ignition timing, turns on Tr at a predetermined
DTC P0120 Throttle/Pedal Position Sensor/Switch A Circuit Malfunction
DI36 EINE (5VZFE) DI1LH14 DTC P0120 Throttle/Pedal Position Sensor/Switch A Circuit Malfunction CIRCUIT DESCRIPTI Throttle position sensor is mounted on the throttle body and it have the 2 sensors to detect
2UZ-FE ENGINE CONTROL SYSTEM SFI SYSTEM
420 2UZ-FE ENGINE CONTROL SYSTEM SFI SYSTEM DTC DTC P200 P203 /F Sensor Circuit Slow Response (ank 1 Sensor 1) /F Sensor Circuit Slow Response (ank 2 Sensor 1) DCRIPTION DTC P200 indicates malfunctions
Model Year: 2008 Model: ES350 Doc ID: RM000002INN009X
1 of 12 Last Modified: 7-13-2007 Service Category: udio/visual/telematics 1.6 C Section: Park ssist/monitoring Model Year: 2008 Model: ES350 Doc ID: RM000002INN009X Title: PRK SSIST / MONITORING: INTUITIVE
1GR-FE ENGINE CONTROL SYSTEM SFI SYSTEM
118 1GR-FE ENGINE CONTROL SYSTEM SFI SYSTEM P0120 Throttle / Pedal Position Sensor / Switch "" Circuit P0122 Throttle / Pedal Position Sensor / Switch "" Circuit Low Input P0123 Throttle / Pedal Position
DTC P0657 Actuator Supply Voltage Circuit / Open
301 DTC P0657 Actuator Supply Voltage Circuit / Open DCRIPTION The ECM monitors the output voltage to the throttle actuator. This self-check ensures that the ECM is functioning properly. The output voltage
DTC P0717 Input Speed Sensor Circuit No Signal
A750F AUTOMIC TRANSMISSION AUTOMIC TRANSMISSION SYSTEM 65 DTC P0717 Input Speed Sensor Circuit No Signal DESCRIPTION This sensor detects the rotation speed of the turbine which shows the input revolution