Diagnostic Manual, Chassis and Drivetrain,
Volume 2
Diagnosis - Function Test
| Test step/Test sequence |
Test condition |
Nominal value |
Possible cause/Remedy 1) |
| 1.0 Brake torque control circuit |
Lift rear of vehicle so both rear wheels of vehicle can move freely.Secure vehicle properly.
Engine: at Idle
TR "D"
Accelerator pedal at WOT
If ASR does not engage, accelerator pedal in CTP (release accelerator pedal)
|
The rear wheels are noticeably braked, simultaneously the ABS/ASR hydraulic unit high-pressure/return pump can be heard.
Engine speed is reduced to 1000 rpm. |
 23, 33,
DM, Engines, Vol. 3, section 6.2 - 6.4. |
| 1) Observe Preparation for Test, see 22. |
|
Printable version
