Circuit Description
This trouble code (both current and history) indicates that CKT 194 is shorted to battery.
Conditions for Setting the DTC
All of the following conditions must be met:
| • | CKT 194 is shorted to B+. |
| • | The system voltage must be between 9-16 volts. |
| • | The above conditions must be met for 30 seconds. |
Action Taken When the DTC Sets
Stores DTC B3133 in the body control module (BCM) memory.
Conditions for Clearing the DTC
| • | The BCM goes to sleep and reinitializes with the fault cleared. |
| • | All of the BCM history codes clear after 100 ignition cycles (from OFF to RUN) with no current codes active during the 100 ignition cycles. |
| • | Use the Scan Tool in order to clear DTCs. |
Diagnostic Aids
If the DTC is a history DTC, the problem may be intermittent. Perform the above tests while wiggling the wiring and connectors. This will cause the malfunction to appear.
Test Description
The numbers below refer to the numbers on the diagnostic table.
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This step determines if the door unlock relay is operating properly
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This step determines an open in CKT 194 within the left IP wiring harness junction block.
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This step determines a short to ground in CKT 194 between the left IP wiring harness junction block and the Body Control Module (BCM).
Step | Action | Value(s) | Yes | No | ||
|---|---|---|---|---|---|---|
|
Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open. | ||||||
1 | Was the Body Control Module (BCM) System Check performed? | -- | Go to Step 2 | |||
2 | Was the Power Door Locks System Check performed? | -- | Go to Step 3 | Go to Power Door Locks System Check in Doors | ||
3 | Do the door lock actuators operate properly? | -- | Go to Step 11 | Go to Step 4 | ||
Replace the door unlock relay with a known good relay from the left IP wiring harness junction block. Do the door lock actuators operate properly? | -- | Go to Step 5 | Go to Step 6 | |||
5 | Replace the door unlock relay. Is the repair complete? | -- | Go to Step 11 | -- | ||
Does the measured voltage equal the specified value? | 0V | Go to Step 7 | Go to Step 8 | |||
7 | Replace the left IP wiring harness junction block. Is the repair complete? | -- | Go to Step 11 | -- | ||
Is the measured voltage equal to the specified value? | 0V | Go to Step 10 | Go to Step 9 | |||
9 | Repair the short to battery in CKT 194 between the BCM connector C3 terminal B3 and the left IP wiring harness junction block. connector C1 terminal F8. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 11 | -- | ||
10 | Replace the BCM. Refer to the following procedures:
Is the repair complete? | -- | -- | |||
11 |
Is the DTC cleared from the memory? | -- | -- | |||
