Diagnostic Manual, Chassis and Drivetrain,
Diagnosis - Function Test
|Test step/Test scope
||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.
Selector lever in transmission range "D".
Apply full throttle.
|The rear wheels are noticeably braked, simultaneously; the high-pressure/return pump can be heard.
Engine speed is reduced to approx. 1000 rpm.
Engines, Volume 3, section 6.1.
|1) Observe Preparation for Test, see 22.