BATTERY IOD DISCONNECT AT BCM
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
Continuously.
- Set Condition:
The BCM detects a no or low voltage condition on the IOD circuit.
| Possible Causes |
| OPEN FUSES |
| JUNCTION BLOCK |
| BODY CONTROL MODULE |
Diagnostic Test
1. CHECK FOR AN ACTIVE DTCTurn the ignition on.
With the scan tool, erase the BCM DTC's.
Turn the ignition off then turn the ignition on and wait approximately 1 minute.
With the scan tool, read the BCM DTC's.
Did this DTC reset?
Yes
- Go To 2
No
- The condition that set this DTC is no longer present. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
2. CHECK FUSES
Turn the ignition off.
Inspect the Junction Block and the PDC fuses.
Are any fuses open?
Yes
- Replace Fuse(s) as necessary. Use the wiring diagrams to help isolate a possible short circuit condition.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No
- Go To 3
3. CHECK THE (A908) FUSED B+ CIRCUIT FOR AN OPEN
Remove the BCM from the Junction Block.
Using a 12-volt test light connected to ground, probe the (A908) Fused B+ circuit (cavity 15).
Is the test light illuminated?
Yes
- Replace the Body Control Module in accordance with the service information.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No
- Repair the (A908) Fused B+ circuit for an open. If ok, replace the Junction Block in accordance with the service information.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).