9.1 Traction Systems (ASR, ETS) and Speed-sensitive Power Steering (SPS) Contents

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1 9.1 Traction Systems (ASR, TS) and Speed-sensitive Power Steering (SPS) Contents 9.1 Models 129, 140 as of 06/94 up to 08/95 Page Diagnosis Function Test (ASR only) /1 Diagnostic Trouble Code (DTC) Memory /1 Complaint Related Diagnostic Chart /1 lectrical Test Program Component Locations /1 Preparation for Test /1 Test /1 b Diagnostic Manual Chassis and Drivetrain 09/ ASR, TS, SPS C/1

2 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 Diagnosis - Function Test Test step/test scope Test condition Nominal value Possible cause/remedy 1) O 1.0 Brake torque control circuit Lift rear of vehicle so that both rear wheels can be rotated freely. M Secure vehicle! ngine: at Idle Selector lever in transmission range D. Apply WOT using accelerator pedal. M CAUTION! Should ASR not come into effect: Release accelerator pedal to idle speed. The rear wheels are noticeably braked; simultaneously the high-pressure/ return pump can audibly be heard operating. ngine speed is reduced to approx rpm. The ASR warning lamp blinks. 23, DM, ngines, Vol. 3, sections 6.2 to 6.4. O 2.0 ASR off function using ASR OFF switch (S76/5) ngine: at Idle Selector lever in N. Press ASR OFF switch (S76/5). The ASR warning lamp illuminates. 23 O 33.0 Selector lever in transmission range D. Slowly depress accelerator pedal. ngine speed is not reduced. The rear wheels are not braked. The ASR warning lamp blinks. 1) Observe Preparation for Test, see 22. b Diagnostic Manual Chassis and Drivetrain 04/ ASR, TS, SPS 11/1

3 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 Diagnosis - Diagnostic Trouble Code (DTC) Memory Preparation for DTC Readout 1. Connect impulse counter scan tool or Hand-Held Tester (HHT) to data link connector (X11/4) according to connection diagram (see section 0). Note: Connect yellow wire from impulse counter scan tool to: ASR/SPS or TS/SPS control module (, ): socket 6 A/CC/ISC control module (N4/1): socket 7 Base module (N16/1) socket 8 ngine control module (N3/4): socket 4 LH-SFI or right LH-SFI control module (N3/1, N3/3): socket 4 Left LH-SFI control module (N3/2) socket 5 DI or right DI control module (N1/3, N1/5) socket 17 Left DI control module (N1/4) socket Read out DTC memory for control modules. Special Tools Pulse counter Adapter Hand-Held-Tester Test cable b Diagnostic Manual Chassis and Drivetrain 04/ ASR, TS, SPS 12/1

4 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 Diagnosis - Diagnostic Trouble Code (DTC) Memory DTC N A Possible cause Test step/remedy 1) I No fault in system In case of complaint: 23 (entire test), Check shorting pins as per D.D. topic 42A ASR/SPS () or TS/SPS () control module Replace control module Left front axle VSS sensor (L6/1), open circuit 23 O Right front axle VSS sensor (L6/2), open circuit 23 O Left rear axle VSS sensor (L6/3), open circuit 23 O Right rear axle VSS sensor (L6/4), open circuit 23 O Left front axle VSS sensor (L6/1), implausible 2) 23 O Right front axle VSS sensor (L6/2), implausible 2) 23 O Left rear axle VSS sensor (L6/3), implausible 2) 23 O 17.0 I0 0I0 Right rear axle VSS sensor (L6/4), implausible 2) 23 O 19.0 II 0II VSS (L6/1, L6/2, L6/3, L6/4), implausible 2) 23 O 13.0, 15.0, 17.0, 19.0 Visually inspect. I2 0I2 ASR/TS/SP hydraulic unit, solenoid valve relay (A7/3k1) 23 O 8.0 I3 0I3 ASR/TS/SP hydraulic unit, left front axle solenoid valve (hold) (A7/3y6) 23 O 21.0 I4 0I4 ASR/TS/SP hydraulic unit, left front axle solenoid valve (release) (A7/3y7) 23 O ) Observe Preparation for Test, see 22. 2) Rotor with incorrect tooth count, dirt accumulation on or damaged rotor, incorrect rear axle ratio, wrong wheel or tire size. If DTC appears only after repair work, it was caused by applying the brakes or driving vehicle on a dynamometer, erase DTC. b Diagnostic Manual Chassis and Drivetrain 04/ ASR, TS, SPS 12/2

5 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 Diagnosis - Diagnostic Trouble Code (DTC) Memory DTC N A Possible cause Test step/remedy 1) I5 0I5 ASR/TS/SP hydraulic unit, right front axle solenoid valve (hold) (A7/3y8) 23 O 23.0 I6 0I6 ASR/TS/SP hydraulic unit, right front axle solenoid valve (release) (A7/3y9) 23 O 24.0 I7 0I7 ASR/TS/SP hydraulic unit, left rear axle solenoid valve (hold) (A7/3y10) 23 O 25.0 I8 0I8 ASR/TS/SP hydraulic unit, left rear axle solenoid valve (release) (A7/3y11) 23 O 26.0 I9 0I9 ASR/TS/SP hydraulic unit, right rear axle solenoid valve (hold) (A7/3y12) 23 O ASR/TS/SP hydraulic unit, right rear axle solenoid valve (release) (A7/3y13) 23 O I 02I ASR/TS/SP hydraulic unit, switchover/solenoid valve (A7/3y5) 23 O ASR/TS/SP hydraulic unit, inlet solenoid valve (A7/3y15) 23 O ASR only: ASR system pressure too low ASR hydraulic unit (A7/3) ASR/TS/SP hydraulic unit, high-pressure/return pump relay (A7/3k2) 23 O 9.0 High-pressure/return pump (A7/3m1) Stop lamp switch (S9/1) 23 O Battery voltage too low, circuit O TS only: Circuit 30, voltage supply 23 O ASR only: CAN data bus to A/CC/ISC control module (N4/1) interrupted 23 O 35.0 Read out DTC, see DM, ngines, Vol. 3, sections 6.2 to ) Observe Preparation for Test, see 22. b Diagnostic Manual Chassis and Drivetrain 04/ ASR, TS, SPS 12/3

6 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 Diagnosis - Diagnostic Trouble Code (DTC) Memory DTC N A Possible cause Test step/remedy 1) 3I 03I ASR only: CAN communication with LH-SFI or left and right LH-SFI control modules (N3/1 or N3/2 and N3/3) faulty CAN communication with engine control module (N3/4) faulty ASR only: CAN dcommunication with DI or left and right DI control module (N1/3 or N1/4 and N1/5) faulty 23 O 35.0, Read out DTC, see DM, ngines, Vol. 2, section , or or O 35.0, Read out DTC, see DM, ngines, Vol. 2, section 5. 2 or ASR only: CAN communication faulty in general 23 O 35.0, Read out DTC, see DM, ngines, Vol. 3, sections 6.2 to (ASR). Read out DTC, see DM, ngines, Vol. 2, sections 5.2 or (DI). Read out DTC, see DM, ngines, Vol. 2, sections 3.1 or (LH-SFI). Read out DTC, see DM, ngines, Vol. 2, section (HFM-SFI). Read out DTC, see DM, Chassis & Drivetrain, Vol. 1, section (TC). 1) Observe Preparation for Test, see 22. b Diagnostic Manual Chassis and Drivetrain 04/ ASR, TS, SPS 12/4

7 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 Diagnosis - Diagnostic Trouble Code (DTC) Memory DTC N A Possible cause Test step/remedy 1) TS only: Brakes overheated Brakes were momentarily overloaded, erase DTC Model , /05/07: Master brake cylinder switchover valve (Y61) 23 O Model , /05/07: ABS lateral accelration sensor (B24/2), open circuit Model , /05/07: ABS lateral accelration sensor (B24/2), implausible 23 O O TS only: TS/SPS control module () not coded Input code data into control module with HHT Model 140: ASR/SPS or TS/SPS control module ( or ) Replace control module Model 140: SPS P-valve (Y10) 23 O I 04I Model 140: ASR/SPS or TS/SPS control module ( or ) Replace control module. 1) Observe Preparation for Test, see 22. b Diagnostic Manual Chassis and Drivetrain 04/ ASR, TS, SPS 12/5

8 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 Diagnosis - Complaint Related Diagnostic Chart Complaint/Problem Possible cause Test step/remedy 1) ASR MIL (A1e22) or TS MIL (A1e35) and ABS MIL (A1e17) come when engine is running TS MIL (A1e35) comes on while driving and after a while goes out ASR MIL (A1e22) or TS MIL (A1e35) and ABS MIL (A1e17) comes on while driving and does not go out Check voltage supply and ground, Read DTC memory 12, DM, Chassis & Drivetrain, Vol. 1, section Rear axle brakes were momentarily overloaded. Read DTC memory 12, rase DTC 034 Read DTC memory 12 ASR MIL (A1e22) or TS MIL (A1e35) and ABS MIL (A1e17) comes on while driving and then goes out Vehicle system voltage < 11 V, too many electrical consumers in use. Check voltage supply and ground, Check generator (G2), Read DTC memory 12 ABS MIL (A1e17) does not come on with ignition turned on 23 O 3.0 ASR MIL (A1e22) or TS MIL (A1e35) does not come on with ignition turned on ABS MIL (A1e17) comes on with engine running after brake test or dynamometer use 1) Observe Preparation for Test, see 22. Implausible rpm signal due to different rpm at front and rear axles. 23 O 4.0 Read, erase DTC memory 12 b Diagnostic Manual Chassis and Drivetrain 04/ ASR, TS, SPS 13/1

9 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Component Locations Figure 1 A1e17 ABS MIL A7/3k1 ASR/TS/SP hydraulic unit, solenoid valve relay A7/3k2 ASR/TS/SP hydraulic unit, high-pressure/return pump relay A7/3m1 ASR/TS/SP hydraulic unit, high-pressure/return pump L6/1 Left front axle VSS sensor L6/2 Right front axle VSS sensor L6/3 Left rear axle VSS sensor L6/4 Right rear axle VSS sensor N16/1 Base module S9/1 Stop lamp switch X11/4 Data link connector ASR only A1e21 ASR warning lamp A1e22 ASR MIL ASR/SPS control module S12 Parking brake switch S76/5 ASR OFF switch Y61 Master brake clinder switchover valve (Models , /05/07) TS only A1e35 TS MIL A1e36 TS warning lamp TS/SPS control module P b Diagnostic Manual Chassis and Drivetrain 04/ ASR, TS, SPS 21/1

10 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Preparation for Test Disconnect ASR/SPS or TS/SPS control module ( or ). 3. Connect socket box with test cable as per connection diagram (Figure 1). Note: The measured voltages will be slightly lower in diesel models during preglow. lectrical Wiring Diagrams: lectrical Troubleshooting Manual, Model 129, lectrical Troubleshooting Manual, Model 140. M When exchanging an TS/SPS control module, the replacement module must have the code data entered via the HHT. Follow instructions on HHT display. Special Tools pin socket box Test cable for module 6 lectrical connecting set Mounting lever Conventional tools, test equipment Description Brand, model, etc. Digital multimeter 1) Fluke models 23, 83, 85, 87 1) Available through the MBUSA Standard quipment Program. b Diagnostic Manual Chassis and Drivetrain 09/ ASR, TS, SPS 22/1

11 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Preparation for Test Connection Diagram Socket Box Figure Digital multimeter 050 Socket box, 126-pole 100 Test cable, F23 Module box ASR/SPS control module TS/SPS control module Location of control module in module box a Model 140 with HFM-SFI b Model 140 with LH-SFI c Model 129 P b Diagnostic Manual Chassis and Drivetrain 09/ ASR, TS, SPS 22/2

12 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test ASR/SPS or TS/SPS control module ( or ) Circuit 87 Voltage supply 77 w c c L 68 (1.27) L V O 1.1, O 1.2 (1.36) (1.27) 1.1 Voltage supply from base module (N16/1) o c L V Fuse (F1) on N16/1, DM, Chassis & Drivetrain, Vol. 1, sections 1.1 or , Wiring. (1.27) 1.2 Ground wire Model 129 W27 Model 140 W15 Model 129 W27 Model 140 W15 b b L 74 L 77 (1.36) Control module ( or ) disconnected. Disconnect ground wire. < 1 ] Model 129 Ground (module box bracket) (W27). Model 140 Ground (electronics output ground - right footwell) (W15). b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/1

13 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test 2.0 TS only 029 TS/SPS control module () Circuit 30 Voltage supply c L 47 (1.6) V Wiring. 3.0 ABS MIL (A1e17) c L 76 (1.35) < 2 V A1e17: ON A1e17. ngine: at Idle V A1e17: OFF Read DTC memory 12, or. 4.0 ASR MIL or TS MIL (A1e22 or A1e35) (1.36) c L 79 (1.38) < 2 V A1e22 or A1e35: ON A1e22 or A1e35. ngine: at Idle V A1e22 or A1e35: OFF Read DTC memory 12, or. b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/2

14 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test 5.0 ASR or TS warning lamp (A1e21 or A1e36) c L 57 (1.16) < 2 V A1e21 or A1e36: ON A1e21 or A1e36. ngine: at Idle V A1e21 or A1e36: OFF Wiring. 6.0 Diagnosis output c L 53 (1.12) V or. 7.0 Circuit 61 Voltage supply A ngine: at Idle OFF ON Generator (G2). b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/3

15 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test 8.0 0I2 ASR/TS/SP hydraulic unit, solenoid valve relay (A7/3k1) Voltage supply c L 7 (2.7) V 12, O 8.1 Control 27 w c L 7 (2.27) (2.7) 8.1 Coil resistance 27 w b L 7 Control module ( or ) disconnected ] A7/3k1, O 8.2 (1.27) (2.7) 8.2 Working contact c L 18 (2.18) V A7/3k1. b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/4

16 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test ASR/TS/SP hydraulic unit, high-pressure/return pump relay (A7/3k2) Voltage supply c L V O 9.1 (2.7) 9.1 Coil resistance 28 w b L 7 Control module ( or ) disconnected ] A7/3k2. (2.28) (2.7) 10.0 Parking brake switch (S12) A ngine: at Idle Apply parking brake. Release parkng brake. ON Parking brake indicator lamp (A1e7): ON OFF A1e7: OFF S12, A1e7. b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/5

17 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test Stop lamp switch (S9/1) N.O. contact A Brakes not applied. Brakes applied. OFF ON S9/1. N.C. contact Brakes not applied. Brakes applied. OFF ON Models , /05/07 1 v Y61 b K 2 Pull connector off of Y ] Y61. Master brake cylinder switchover valve (Y61) Internal resistance II Left front axle VSS sensor (L6/1) A Raise front of vehicle. Rotate left front tire by hand (> 1 rev./sec.). > 2 mph (3 km/h) O 13.1, O Internal resistance 10 w b L 30 Control module ( or ) disconnected k] L6/1. (2.10) (2.30) b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/6

18 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test 13.2 Insulation resistance b L10 Control module ( or ) disconnected. > 20 k] L6/1. (2.10) 14.0 Left front axle VSS sensor (L6/1) output f L 64 (1.23) Raise front of vehicle. Rotate left front tire by hand (> 1 rev./sec.). > 3 V O 14.1, or Load with control modules connected b L 64 Control module ( or ) disconnected. > 5 k] Connected control modules (N4/1, N4/2, N22, etc.), O 13.0 (1.23) II Right front axle VSS sensor (L6/2) A Raise front of vehicle. Rotate right front tire by hand (> 1 rev./sec.). > 2 mph (3 km/h) O 15.1, O Internal resistance 13 w b L 34 Control module ( or ) disconnected k] L6/2. (2.13) (2.34) b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/7

19 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test 15.2 Insulation resistance b L 13 Control module ( or ) disconnected. > 20 k] L6/2. (2.13) 16.0 Right front axle VSS sensor (L6/2) output ASR f L 44 Raise front of vehicle. Rotate right front tire by hand (> 1 rev./sec.). > 3 V O 16.1, or. (1.3) TS f L 65 (1.24) 16.1 Load with control modules connected ASR b L 44 control module ( or ) disconnected. > 5 k] Connected control modules (N16/1, N51, etc.), O 15.0 (1.3) TS b L 65 (1.24) b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/8

20 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test II Left rear axle VSS sensor (L6/3) A Raise rear of vehicle. Rotate left rear tire by hand (> 1 rev./sec.). > 2 mph (3 km/h) O 17.1, O Internal resistance 73 w (1.32) b L 72 (1.31) Control module ( or ) disconnected k] L6/ Insulation resistance b L 73 Control module ( or ) disconnected. > 20 k] Wiring. (1.32) 18.0 Left rear axle VSS sensor (L6/3) output ASR f L 66 (1.25) Raise rear of vehicle. Rotate left rear tire by hand (> 1 rev./sec.). > 3 V O 18.1, or. TS f L 58 (1.17) b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/9

21 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test 18.1 Load with control modules connected ASR b L 66 Control module ( or ) disconnected. > 5 k] Connected control modules (N3/4, N4/1, etc.), O 17.0 (1.25) TS b L 58 (1.17) I0 0II Right rear axle VSS sensor (L6/4) A Raise rear of vehicle. Rotate right rear tire by hand (> 1 rev./sec.). > 2 mph (3 km/h) O 19.1, O Internal resistance 71 w (1.30) b L 70 (1.29) Control module ( or ) disconnected k] L6/ Insulation resistance b L 71 Control module ( or ) disconnected. > 20 k] L6/4. (1.30) b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/10

22 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test 20.0 Right rear axle VSS sensor (L6/4) output f L 67 Raise rear of vehicle. Rotate right rear tire by hand (> 1 rev./sec.). > 3 V O 20.1, or. (1.26) 20.1 Load with control modules connected b L 67 Control module ( or ) disconnected. > 5 k] Connected control modules (N3/4, N4/1, etc.), O 19.0 (1.26) I3 ASR/TS/SP hydraulic unit, left front axle solenoid valve (hold) (A7/3y6) Internal resistance 1 v A7/3 b K 12 Disconnect electrical connector on A7/ ] A7/ I4 ASR/TS/SP hydraulic unit, left front axle solenoid valve (release) (A7/3y7) Internal resistance 1 v A7/3 b K 13 Disconnect electrical connector on A7/ ] A7/3. b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/11

23 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test I5 ASR/TS/SP hydraulic unit, right front axle solenoid valve (hold) (A7/3y8) Internal resistance 1 v A7/3 b K 3 Disconnect electrical connector on A7/ ] A7/ I6 ASR/TS/SP hydraulic unit, right front axle solenoid valve (release) (A7/3y9) Internal resistance 1 v A7/3 b K 14 Disconnect electrical connector on A7/ ] A7/ I7 ASR/TS/SP hydraulic unit, left rear axle solenoid valve (hold) (A7/3y10) Internal resistance 1 v A7/3 b K 19 Disconnect electrical connector on A7/ ] A7/ I8 ASR/TS/SP hydraulic unit, left rear axle solenoid valve (release) (A7/3y11) Internal resistance 1 v A7/3 b K 18 Disconnect electrical connector on A7/ ] A7/3. b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/12

24 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test I9 ASR/TS/SP hydraulic unit, right rear axle solenoid valve (hold) (A7/3y12) Internal resistance 1 v A7/3 b K 20 Disconnect electrical connector on A7/ ] A7/ ASR/TS/SP hydraulic unit, right rear axle solenoid valve (release) (A7/3y13) Internal resistance 1 v A7/3 b K 17 Disconnect electrical connector on A7/ ] A7/ ASR/TS/SP hydraulic unit, inlet solenoid valve (A7/3y15) Internal resistance 1 v A7/3 b K 16 Disconnect electrical connector on A7/ ] A7/ I ASR/TS/SP hydraulic unit, switchover/solenoid valve (A7/3y5) Internal resistance 1 v A7/3 b K 21 Disconnect electrical connector on A7/ ] A7/3. b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/13

25 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test Model 140 SPS P-valve (Y10) Voltage supply A ngine: at Idle Press MAX key Press MIN key > 800 ma steering is light < 400 ma steering is heavy O 31.1, or Coil resistance 21 w b L 22 Control module ( or ) disconnected. 3 8 ] Y10. (2.21) (2.22) Models , /05/07 ABS lateral accelration sensor (B24/2) Static sensor signal (off) A 0±I m/s2 B24/2, O 32.1 Dynamic sensor signal (on) Vigorously rock vehicle from side to side. > I m/s2 Value changes with movement of vehicle b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/14

26 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test 32.1 Voltage suppply to sensor input 65 w c L 50 Disconnect connector on B24/ V. (1.24) (1.9) 33.0 ASR only ASR OFF switch (S76/5) A Press and hold switch S76/5: ON Release switch I 2 V V S76/5,. Press and hold switch S76/5: OFF < I V 34.0 VSS sensor output status Signal: Vehicle stationary f L 42 ngine: at Idle > 3 V O 34.1 (1.1) 35.0 ASR only I CAN bus L w b L H Disconnect contact module 2 or. Test directly at both wide connectors using an ohmmeter ] Data bus, O 35.1, O 35.2 b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/15

27 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test 35.1 ngine 104, 119 CAN element in LH-SFI or engine control module (N3/1 or N3/4) Resistance L w N3/1 N3/4 b L H Disconnect control module (N3/1 or N3/4) and test directly on control module using an ohmmeter ] N3/1 or N3/4, DM, ngines, Vol. 2, sections 3.1 or CAN element in DI control module (N1/3, N1/4 or N1/5) Resistance ngine 104/119 LH-SFI ngine w 3 w N1/3 b N1/4 N1/5 b L 4 L 4 Disconnect connector B on control module (N1/3, N1/4 or N1/5) and test directly on control module using an ohmmeter ] ngine 104/119 LH-SFI N1/3, DM, ngines, Vol. 2, section ngine 120 N1/4 or N1/5, DM, ngines, Vol. 2, section TS only TS signal c L 50 (1.9) ngine: at Idle < 1 V TS MIL (A1e35): ON V A1e35: OFF. b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/16

28 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test Connector Layout - Connector 1 (interior harness) ASR/SPS or TS/SPS control module ( or ) P VSS sensor output status 2 not used 3 ASR: Right front axle VSS sensor (L6/2) output 4 TS: Stop lamp switch (S9/1), N.C. contact 5 ASR: Stop lamp switch (S9/1), N.C. contact 6 ASR: Circuit 61 voltage TS: Circuit 30 voltage 7 ASR: ASR Off switch (S76/5) 8 ASR: Stop lamp switch (S9/1) N.O. contact 9 ASR: Models , /05/07 ASR lateral accelration sensor (B24/2) (+) TS: TS signal not used 12 Diagnosis output to DLC (X11/4) 13 not used 14 ASR: Parking brake switch (S12) 15 not used 16 ASR or TS warning lamp (A1e21 or A1e36) 17 ASR: Models , /05/07 ASR lateral acceleration sensor (B24/2) signal TS: Left rear axle VSS sensor (L6/3) output not used 23 Left front axle VSS sensor (L6/1) output 24 ASR: Models , /05/07 ASR lateral acceleration sensor (B24/2) (-) TS: Right front axle VSS sensor (L6/2) output 25 ASR: Left rear axle VSS sensor (L6/3) output TS: Circuit 61 voltage 26 Right rear axle VSS sensor (L6/4) output 27 Circuit 87 voltage 28 TS: Stop lamp switch (S9/1) N.O. contact 29 Right rear axle VSS sensor (L6/4) (+) 30 Right rear axle VSS sensor (L6/4) ( ) 31 Left rear axle VSS sensor (L6/3) (+) 32 Left rear axle VSS sensor (L6/3) ( ) 33 Ground Model 140: W15 Model 129: W27 34 not used 35 ABS MIL (A1e17) 36 Ground W16/1 or W27 37 not used 38 ASR or TS MIL (A1e22 or A1e35) H ASR: CAN bus (+) L ASR: CAN bus ( ) b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/17

29 9.1 ASR, TS and SPS Models 129, 140 as of 06/94 lectrical Test Program - Test Connector Layout - Connector 2 (engine harness) ASR/SPS or TS/SPS control module ( or ) P not used 2 ASR/TS hydraulic unit, left rear axle solenoid valve (release) (A7/3y11) ( ) 3 ASR/TS hydraulic unit, right rear axle solenoid valve (hold) (A7/3y12) ( ) 4 Master brake cylinder switchover valve (Y61) 5-6 not used 7 ASR/TS hydraulic unit, high-pressure/return pump relay (A7/3k2) and solenoid valve relay (A7/3k1) 8-9 not used 10 Left front axle VSS sensor (L6/1) ( ) not used 13 Right front axle VSS sensor (L6/2) ( ) not used 17 ASR/TS hydraulic unit, inlet solenoid valve (A7/3y15) ( ) 18 ASR/TS hydraulic unit, left front axle solenoid valve (hold) (A7/3y6) ( ) 19 ASR/TS hydraulic unit, switchover/solenoid valve (A7/3y5) ( ) 20 ASR/TS hydraulic unit, left front axle solenoid valve (release) (A7/3y7) ( ) 21 Model 140: SPS P-valve (Y10) ( ) 22 Model 140: SPS P-valve (Y10) (+) 23 ASR/TS hydraulic unit, right rear axle solenoid valve (hold) (A7/3y12) ( ) 24 ASR/TS hydraulic unit, right rear axle solenoid valve (hold) (A7/3y13) (-) not used 27 ASR/TS hydraulic unit, solenoid valve relay (A7/3k1) ( ) 28 ASR/TS hydraulic unit, high-pressure/return pump relay (A7/3k2) ( ) 29 not used 30 Left front axle VSS sensor (L6/1) (+) not used 34 Right front axle VSS sensor (L6/2) (+) 35 not used 36 ASR/TS hydraulic unit, high-pressure/return pump relay (A7/3k2) control 37 not used 38 ASR/TS hydraulic unit, right front axle solenoid valve (hold) (A7/3y8) ( ) 39 ASR/TS hydraulic unit, right front axle solenoid valve (release) (A7/3y9) ( ) not used b Diagnostic Manual Chassis and Drivetrain 07/ ASR, TS, SPS 23/18

10.1 Electronic Stability Program (ESP) and Speed-sensitive Power Steering (SPS) Contents

10.1 Electronic Stability Program (ESP) and Speed-sensitive Power Steering (SPS) Contents 10.1 lectronic Stability Program (SP) and Speed-sensitive Power Steering (SPS) Contents 10.1 Models 129 (with engine 104, 119) up to M.Y. 1999, Model 129 (with engine 120), 140, 210 as of M.Y. 1996 Page