Circuit Description
The instrument panel cluster (IPC) monitors the ignition 0 voltage circuit when the ignition switch is in either the ON position or the OFF position. If the IPC senses that the ignition 0 voltage circuit is low for greater than 3 seconds, DTC B1369 is set.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B1369 Device Ignition 0 (UNLOCK, ON, and START) Circuit Open
Conditions for Running the DTC
| • | The ignition switch is ON. |
| • | At least 3 seconds has elapsed since the ignition switch was cycled ON. |
Conditions for Setting the DTC
The ignition 0 input is low during power up or while in RUN for greater than 3 seconds.
Action Taken When the DTC Sets
| • | The IPC stores DTC B1369 in memory. |
| • | The IPC will store conditions which were present when the DTC set as Failure Records data only. The information will not be stored as Freeze Frame data. |
Conditions for Clearing the DTC
| • | A current DTC B1369 will clear when the malfunction is no longer present and the ignition switch is cycled. |
| • | A history DTC B1369 will be cleared after 100 ignition cycles with no current codes active during the 100 ignition cycles. |
| • | The IPC receives the clear code command from the scan tool. |
Diagnostic Aids
If the DTC is a history DTC, the problem may be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Test Description
The number below refers to the step number on the diagnostic table.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Instrument Cluster 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 |
Does the scan tool display On? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
Test the ignition 0 voltage circuit for an open or a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 6 | Go to Step 4 | |
4 | Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 6 | Go to Step 5 |
5 | Replace the IPC. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 6 | -- |
6 |
Does the DTC reset? | Go to Step 2 | System OK |
