For 1990-2009 cars

#### DTC B1000 IPC Malfunction

Instrument Cluster Components
Instrument Cluster Ignition Voltage and Indicators 1 of 3
Cell 10: AIR BAG, TURN LPS, RDO ACC, WIPER, PCM ACC and IPC/BFC ACC FusEs
Cell 14: G202

### Circuit Description

The instrument cluster performs an internal test in order to determine the integrity of the instrument cluster.

### Conditions for Setting the DTC

The DTC sets under any of the following conditions:

• | The internal supply voltage is out of range for more than 10 seconds.

• | An EEPROM checksum error exists.

### Action Taken When the DTC Sets

The SERVICE VEHICLE SOON indicator turns ON.

### Conditions for Clearing the DTC

• | Under all fault conditions, the ignition switch must be cycled from ON to OFF, and back to ON before this DTC can change from current to history.

• | A history DTC will clear if the condition for this DTC is no longer present after 100 drive cycles.

• | Use a scan tool.

### Diagnostic Aids

Since DTC B1000 is an internal instrument cluster malfunction, replace the instrument cluster.

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the instrument cluster system check performed? | -- | Go to Step 2 | Go to Instrument Cluster System Check
2 | Replace the instrument cluster. Refer to Instrument Cluster Replacement . Is the repair complete? | -- | Go to Instrument Cluster System Check | --