Test 12-23
Test steps 12 - 23Check inlet and outlet (exhaust) solenoids in hydraulic unit for operation and accidental interchanging. Rotate all 4 wheels individually (successively according to tester menu instructions). On solo ABS systems, the rear-axle solenoids can be checked either on the right or the left wheel (Test step 18.. .20)
For troubleshooting, the solenoids can also be activated individually using the Drive links menu.
- If another but the wheel shown on the tester display reacts, this means that the brake pipes have been interchanged (e.g. on adapter fitting / see Overview, item 1.). Overview This may also be due to accidental interchanging of electrical wiring if unauthorized repairs have been made on the wiring harness after accident repairs.
- For troubleshooting, proceed as for test points 15 - 22 (depending on test step that the fault occurred in). Antilock Brakes / Traction Control Systems