For 1990-2009 cars
Data Link Communications Components
Data Link Connector Schematics
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice

### Circuit Description

DTC C1275 will set if the EBCM receives a malfunction message from the PCM. The PCM sends this message to the EBCM because of a powertrain malfunction or a loss of class 2 communications from the EBCM to the PCM.

### Conditions for Setting the DTC

When a malfunction is detected by the PCM, the PCM causes ETS to shutdown until the malfunction is corrected.

### Action Taken When the DTC Sets

This DTC is an operational malfunction.

The following actions are taken when the DTC sets:

• | A malfunction DTC is stored

• | ETS is disabled

• | The TRAC OFF indicator is turned ON

The ABS remains functional.

### Conditions for Clearing the DTC

ETS will remain disabled until the EBCM receives a traction allowed message from the PCM. When the EBCM receives this message, it will re-enable the ETS and turn OFF the TRAC OFF indicator with the following drive cycle.

### Diagnostic Aids

Check for PCM DTCs. If no PCM DTC is stored, DTC C1275 may have set due to a hot engine or a hot transaxle (both normal conditions). No repairs should be made to the Traction Control System.

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 | Go to Diagnostic System Check - ABS
2 |

1. Turn the ignition switch to the ON position.
2. Use the Scan Tool in order to read the DTCs.

Make note of the DTCs.

Are any other ABS/ETS or PCM DTCs set?

--

Go to the appropriate DTC Table

Go to Step 3

3 |

1. Clear the DTCs.
2. Turn the ignition switch to the OFF position.
3. Turn the ignition switch to the ON position.

Does DTC C1275 reset?

--

Go to Step 5

Go to Step 4

4 |

1. Start the engine and test drive the vehicle at a speed of at least 16 km/h (10 mph).
2. Repeat the above drive cycle sequence two more times.

Did the DTC C1275 set in these last three drive cycles?

--

Go to Step 5

Go to Diagnostic System Check - ABS

5 | Perform a Powertrain OBD System Check. Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 2.4L or Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 3.4L before beginning the table. Did the vehicle pass the OBD system check? | -- | Go to Step 6 | --
6 | Replace the EBCM. Refer to Electronic Brake Control Module Replacement . Is the repair complete? | -- | Go to Diagnostic System Check - ABS | --