Circuit Description
The DTC C1271 indicates that a failure has occurred within the EBCM/EBTCM.
Conditions for Setting the DTC
The DTC C1271 may occur intermittently, due to interference. Therefore, clear the code and test drive the vehicle before replacing the EBCM/EBTCM.
Action Taken When the DTC Sets
The following actions occur when the DTC sets:
| • | DTC C1271 is stored |
| • | The ABS/TCS is disabled |
| • | The ANTILOCK indicator lamp is turned on |
Conditions for Clearing the DTC
The DTC will clear under following conditions:
| • | Conditions for the malfunction are no longer present. Use the scan tool Clear DTCs function. |
| • | 100 ignition switch key cycles have passed without detecting any malfunctions |
Diagnostic Aids
Perform a thorough inspection of the wiring and the connectors.
Failure to carefully inspect wiring may result in a misdiagnosis. A misdiagnosis may result in replacing parts without repairing the malfunction.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the ABS Diagnostic System Check performed? | -- | Go to Step 2 | |
2 |
Did DTC C1271 reset during the test drive? | -- | Go to Step 3 | |
3 | Replace the EBCM/EBTCM. Refer to Electronic Brake and Traction Control Module Replacement . Is the replacement complete? | -- | -- |
