Circuit Description
The body control module (BCM) provides an output to the driver switch assembly through the passenger door lock switch lock control circuit for controlling automatic door lock and keyless entry lock functions.
DTC Descriptors
This diagnostic procedure supports the following DTCs:
| • | DTC B3152 Lock Switch Circuit Low |
| • | DTC B3153 Lock Switch Circuit High |
Conditions for Setting the DTC
| • | The BCM detects a short to ground on the passenger door lock switch lock control circuit for greater than 60 seconds. |
| • | The BCM detects a short to battery on the passenger door lock switch lock control circuit for greater than 1 second. |
Action Taken When the DTC Sets
| • | The BCM stores DTC B3152 or B3153 in memory. |
| • | The BCM will disable the output and all operations of the output until the fault no longer exists. |
Conditions for Clearing the DTC
| • | The BCM no longer detects the short to ground on the passenger door lock switch lock control circuit for greater than 60 seconds. |
| • | The BCM no longer detects the short to battery on the passenger door lock switch lock control circuit for greater than 1 second. |
| • | 100 consecutive ignition cycles have been recorded without the DTC being detected. |
Diagnostic Aids
If DTC B3152 or B3153 are history DTCs, the fault may be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
-
This step determines whether the driver switch assembly is stuck or shorted.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Door Lock/Indicator Schematics Connector End View Reference: Power Door Systems Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
Does the DTC reset? | Go to Step 3 | Go to Step 5 | |
Does the DTC reset? | Go to Step 4 | Go to Step 6 | |
4 | Test the passenger door lock switch lock control circuit for a short to ground or voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 7 |
5 | Inspect for poor connections at the harness connector of the passenger door lock switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 8 |
6 | Inspect for poor connections at the harness connector of the driver switch assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 9 |
7 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
8 | Replace the passenger door lock switch. Refer to Door Lock and Side Window and Outside Rearview Mirror Remote Control Switch Replacement . Did you complete the replacement? | Go to Step 11 | -- |
9 | Replace the driver switch assembly. Refer to Door Lock and Side Window and Outside Rearview Mirror Remote Control Switch Replacement . Did you complete the replacement? | Go to Step 11 | -- |
10 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 11 | -- |
11 |
Does the DTC reset? | Go to Step 2 | System OK |
