1. DTC check.
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Are there DTCs indicated?
YES
Go to indicated DTC's troubleshooting.
NO
Go to step 2.
2. Gauge control module operation check.
Is the gauge control module OK?
YES
Go to step 3.
NO
Replace the gauge control module.
3. Shorted wire check (PARK LAMP line).
Electric parking brake control unit 30P connector
Gauge control module connector A (32P)
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Is there continuity?
YES
Repair a short to body ground in the PARK LAMP wire between the electric parking brake control unit and the gauge control module.
NO
The PARK LAMP wire is OK. Go to step 4.
4. Shorted wire check (PARKING BRAKE SW line).
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Is there continuity?
YES
Repair a short to body ground in the PARKING BRAKE SW wire between the electric parking brake control unit and the gauge control module.
NO
The PARKING BRAKE SW wire is OK. Go to step 5.
5. Electric parking brake control unit check (update or substitution).
Electric parking brake control unit 30P connector
Gauge control module connector A (32P)
YES
If the electric parking brake control unit was updated, troubleshooting is complete. If the electric parking brake control unit was substituted, replace the original electric parking brake control unit.
NO
Check for loose terminals and poor connections in the electric parking brake control unit 30P connector.
If the electric parking brake control unit was updated, substitute a known-good electric parking brake control unit and recheck. If the electric parking brake control unit was substituted and the symptom/indication is still present, replace the original electric parking brake control unit.
Electric Parking Brake Symptom Troubleshooting - Electric Parking
Brake System Indicator Does Not Go OFF, And No DTCS Are Stored
Inputs and Outputs
How to Information
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