Info

Test point 4

Solenoid valves 1 and 2 Leakage resistance/short

Fault code 4

This fault is stored in the memory if the supply leads of solenoid valves 1 and 2 have a mutual short circuit or leakage resistance. Pull off plugs on control module and on solenoid valves 1 and 2. Check lines to solenoid valves 1 and 2 for shorts to each other.

Test point 5

Solenoid valve 1 Short to ground Fault code 5

This fault is stored in the memory in the event of a short to ground in

Pull off plug on solenoid valve 1 and plug on control module.

3. Measure resistance between plug on control module pin 4 and ground

Display:

Measure resistance between the plug on the control module pin 4 and

Test point 6

Solenoid valve 1 Open circuit Fault code 6

This fault is stored in the memory if there is an open circuit in the

Pull off plug on control module and on solenoid valve 1

Measure resistance between plug on control module pin 4 and plug on

Measure resistance between the plug on the control module pin 5 and

Push plug onto solenoid valve 2 again. Unplug connector X10 from the subframe. Measure resistance between pins 1 and 2

Test point 7

Solenoid valve 1 Short to B+ Fault code 7

This fault is stored in the memory in the event of a short to B+ in the supply lead of solenoid valve 1 (triggers roll-over bar).

1. Pull off plugs on control module and on solenoid valves 1 and switch Measure voltage between plug on control module pin 4 and ground

Test point 8

Solenoid valve 2 Short to ground Fault code 9

This fault is stored in the event of a short to ground in the lead of

Pull off plug on control module and on solenoid valve 2.

Measure resistance between plug on control module pin 17 and ground

Push plug onto solenoid valve 2 again. Unplug connector X10 from the subframe. Measure resistance between pins 3 and 4

Test point 9

Solenoid valve 2 Open circuit Fault code 10

This fault is stored in the memory if there is an open circuit in the

1. Pull off plug on control module and on solenoid valve 2

Measure resistance between plug on control module pin 17 and plug

2. Measure resistance between the plug on the control module pin 21

Push plug onto solenoid valve 2 again. Unplug connector XI0 from the subframe. Measure resistance between pins 3 and 4

69 71 Diagnosis/troubleshooting, roll-over protection system - UEB11

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