Circuit/System Verification
- Ignition ON.
- Verify DTC U0128 is not set.
- If the DTC is set
Please Refer to DTC U0100-U02FF (without HP6) or DTC U0100-U02FF (with HP6)
- If the DTC is not set
- If the DTC is set
- Verify the scan tool Park Brake Status parameter changes between Released and Apply while pressing and releasing the S91 Park Brake Control Switch.
- If the parameter does not change
Refer to Circuit/System Test.
- If the parameter changes
- If the parameter does not change
- All OK.