Circuit Description
The internal fault detection of the electronic compass module is handled by the instrument panel cluster (IPC). The compass information is sent to the IPC via 2 discreet wire inputs from the electronic compass module. The IPC displays compass information in the driver information center (DIC). The DIC displays 2 dashes (- -) when the IPC looses connection with the electronic compass module.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B0931 Compass Sensor Circuit
Conditions for Running the DTC
The IPC monitors the analog input value at power up.
Conditions for Setting the DTC
The IPC does not detect valid data from the electronic compass module.
Action Taken When the DTC Sets
The DTC will be set and stored in non-volatile memory.
Conditions for Clearing the DTC
| • | The DTC becomes history when the IPC no longer detects a failure. |
| • | The history DTC clears after 100 fault-free ignition cycles. |
| • | The IPC receives the clear code command from the scan tool. |
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Instrument Cluster Schematics or Driver Information System Schematics | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Is the DTC displayed as a current code? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
3 | Inspect for poor connections at the harness connector of the compass. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 5 | Go to Step 4 |
4 | Replace the electronic compass module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 5 | -- |
5 |
Does the DTC reset? | Go to Step 2 | System OK |
