For 1990-2009 cars only
Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Diagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Clock Battery Positive Voltage | 1 | 1 | -- | -- |
Clock Ground | -- | 1 | -- | -- |
1. Clock Malfunction | ||||
Circuit/System Description
The instrument panel cluster (IPC) is equipped with an analog clock. The analog clock utilizes battery positive voltage circuit from the BCM and the clock ground circuit to operate.
Reference Information
Schematic Reference
Driver Information System Schematics
Connector End View Reference
Description and Operation
Instrument Cluster Description and Operation
Electrical Information Reference
Scan Tool Reference
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the clock.
- Ignition OFF, test for less than 1 ohm of resistance between the ground circuit terminal 2 and ground.
- Ignition ON, verify that a test lamp illuminates between the B+ voltage circuit terminal 3 and ground.
- If all circuits test normal, replace the clock.
| ⇒ | If greater than the specified value, test the ground circuit for an open/high resistance. |
| ⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
