AD32.32-P-4000A | Adaptive damping system (ADS II) diagnosis, fault memory | 24.2.97 |
MODEL 129 as of 1.9.95
Prerequisites for reading out fault memory | |||
I | Connect Hand-Held Tester to data link connector (DTC readout) (X11/4) in accordance with connecting diagram. | ||
II | Ignition: ON | ||
III | Read out fault memory of ADS system | If no fault is stored in the event of complaint | |
Perform testing electrical system | |||
Fault code | Possible cause | Notes | Remedy |
| ADS control module (N51) | N51 | |
| Battery undervoltage, terminal 87 | ||
| Battery overvoltage, terminal 87 | ||
| Front left wheel speed signal from ASR/SPS control module (N47-1) or ESP/SPS/BAS control module (N47-5) Wheel speed signal status from ASR/SPS control module (N47-1) or ESP/SPS/BAS control module (N47-5) | Read out ASR or ESP fault memory | |
| Left front body lateral acceleration sensor (B24/3) | ||
| Right front body lateral acceleration sensor (B24/4) | ||
| Right rear body lateral acceleration sensor (B24/6) | ||
| Front axle level sensor (B22/2) | ||
| Rear axle level sensor (B22/3) | ||
| Steering angle sensor (N49), open-circuit/short-circuit Steering angle sensor, initializing |
Turn steering wheel from stop to stop | |
| Stop lamp switch (4-pin) (S9/1), open-circuit/short-circuit | Cable S9/1 | |
| Left, front axle solenoid valve 1 (Y51y1), open-circuit/short-circuit | ||
| Left, front axle solenoid valve 2 (Y51y2), open-circuit/short-circuit | ||
| Right, front axle solenoid valve 1 (Y52y1), open-circuit/short-circuit | ||
| Right, front axle solenoid valve 2 (Y52y2), open-circuit/short-circuit | ||
| Left, rear axle solenoid valve 1 (Y53y1), open-circuit/short-circuit | ||
| Left, rear axle solenoid valve 2 (Y53y2), open-circuit/short-circuit | ||
| Right, rear axle solenoid valve 1 (Y54y1), open-circuit/short-circuit | ||
| Right, rear axle solenoid valve 2 (Y54y2), open-circuit/short-circuit | ||
| Valve (raise front axle) (Y36/6y1), open-circuit/short-circuit | ||
| Valve (raise rear axle) (Y36/6y2), open-circuit/short-circuit | ||
| Valve (lower front axle) (Y36/6y3), open-circuit/short-circuit | ||
| Valve (lower rear axle) (Y36/6y4), open-circuit/short-circuit | ||
| ADS MIL (Ale27), open-circuit/short-circuit | ||
| Comfort/sport switch (ADS) (S45/1), open-circuit/short-circuit | Cable S45/1 | |
| Level adjustment switch (S77), open-circuit/short-circuit | Cable S77 | |
| Level adjustment switch (S77), "lock" switch operated | ||
| Vehicle level at front axle too low | ||
| Hydraulic fault, valve operating time/lower rear axle too long Hydraulic fault, valve operating time/lower front axle too long Hydraulic fault, valve operating time/raise rear axle too long Hydraulic fault, valve operating time/raise front axle too long |
Referenced documents
- ad0000p1000az Connecting and using test equipment
- ad3232p600001a ADS control module, testing electrical system of adaptive damping system (ADS II)
- ad3232p600003a ADS MIL, testing electrical system of adaptive damping system (ADS II)
- ad3232p600004a Voltage supply to acceleration sensor and level sensors, testing electrical system of adaptive damping system (ADS II)
- ad3232p600005a Steering angle sensor voltage supply, testing electrical system of adaptive damping system (ADS II)
- ad3232p600007a Left front axle damper valve assembly, testing electrical system of adaptive damping system (ADS II)
- ad3232p600008a Right front axle damper valve, testing electrical system, adaptive damping system (ADS II)
- ad3232p600009a Left rear axle damper valve assembly, testing electrical system of adaptive damping system (ADS II)
- ad3232p600010a Right rear axle damper valve assembly, testing electrical system of adaptive damping system (ADS II)
- ad3232p600011a Rear axle height reduction valve, testing electrical system of adaptive damping system (ADS II)
- ad3232p6000a Adaptive damping system (ADS II), testing electrical system