For 1990-2009 cars

### 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 .

### Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. This step determines whether the passenger door switch is stuck or shorted.

1. 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: Vehicle Access Connector End Views
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle
2 |

1. Disconnect the passenger door lock switch.
2. Turn ON the ignition, with the engine OFF.
3. Use the scan tool in order to clear the DTCs.
4. Operate the vehicle within normal operating conditions.

Does the DTC reset?

Go to Step 3

Go to Step 5

3 |

1. Turn OFF the ignition.
2. Disconnect the driver switch assembly.
3. Turn ON the ignition, with the engine OFF.
4. Use the scan tool in order to clear the DTCs.
5. Operate the vehicle within normal operating conditions.

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 . 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 . 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 . 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 . 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 Switch Replacement - Passenger Front . Did you complete the replacement? | Go to Step 11 | --
9 | Replace the driver switch assembly. Refer to Door Lock Switch Replacement - Driver Door . Did you complete the replacement? | Go to Step 11 | --
10 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 11 | --
11 |

1. Use the scan tool in order to clear the DTCs.
2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK