For 1990-2009 cars

### Circuit Description

The IPC uses the ignition 0 voltage circuit in order to supply voltage to various indicators and gages. The IPC also receives a class 2 message from the BCM indicating the current power mode.

### Conditions for Running the DTC

The ignition is ON.

### Conditions for Setting the DTC

The ignition 0 voltage circuit is less than 75 percent of battery voltage for more than 1 second.

### Action Taken When the DTC Sets

• | The fuel gage, tachometer and speedometer default to 0.

• | The scan tool does not communicate with the instrument cluster.

### Conditions for Clearing the DTC

• | The current DTC clears when the conditions for setting the DTC are no longer present.

• | The history DTC clears after 100 malfunction free ignition cycles.

• | The IPC receives a clear code command from the scan tool.

### Diagnostic Aids

• | When the instrument cluster detects low voltage at the ignition 0 voltage circuit, the instrument cluster will not communicate with the scan tool, and the fuel gage, tachometer and speedometer default to 0.

• | DTC B1365 can only be read by the scan tool as a history code in the IPC once the fault is removed.

• | This DTC cannot be retrieved with a current status. Refer to Scan Tool Does Not Communicate with Class 2 Device for diagnosis of a loss of communication with the instrument cluster.

• | An intermittent condition is likely to be caused by an open condition in the ignition 0 voltage circuit. Refer to Scan Tool Does Not Communicate with Class 2 Device in order to isolate an intermittent condition.