For 1990-2009 cars only
Diagnostic Fault Information
Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Clock Battery Positive Voltage Circuit | 1 | 1 | -- | -- |
Clock Ground Circuit | -- | 1 | -- | -- |
1. Clock Malfunction | ||||
Circuit/System Description
The instrument panel cluster (IPC) is equipped with an analog clock. The analog clock utilizes the clock battery positive voltage circuit and the clock ground circuit to operate. An open circuit condition, a high resistance or a short to ground in the battery positive circuit or the ground circuit will cause the clock not to operate properly.
Reference Information
Schematic Reference
Connector End View Reference
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 clock ground circuit and ground.
- Verify that a test lamp illuminates between the clock B+ circuit and ground.
| ⇒ | If greater than 1 ohm, 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. If all circuits test normal, replace the clock. |
Repair Instructions
Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure.
