For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Door Lock/Indicator Schematics and Door Control Module 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. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. With a scan tool, observe the passenger door handle parameter in the passenger door module (PDM) data list.
4. Activate the front passenger exterior door handle.

Does the scan tool display Inactive?

Go to Step 7

Go to Step 3

3 |

1. With a scan tool, observe the exterior passenger door handle switch parameter in the remote control door lock receiver (RCDLR) miscellaneous inputs list.
2. Activate the front passenger exterior door handle.

Does the scan tool display Inactive?

Go to Step 8

Go to Step 4

4 |

1. Turn OFF the ignition switch.
2. Disconnect the C1 harness connector at the passenger door module (PDM).
3. Connect a test lamp between the door handle switch signal circuit of the unlatch enable switch and the DDM C1 harness connector with battery voltage.

Does the test lamp illuminate?

Go to Step 11

Go to Step 5

5 | Activate the front passenger exterior door handle and observe the test lamp. Does the test lamp illuminate as the front passenger exterior door handle is activated? | Go to Step 6 | Go to Step 12
6 |

1. Reconnect the C1 harness connector at the passenger door module (PDM).
2. Disconnect the front passenger door latch assembly harness connector.
3. Connect a test lamp to the position between the door latch motor control circuit and the door unlatch motor control circuit at the passenger door latch assembly harness connector.
4. Turn ON the ignition switch, with the engine OFF.
5. Activate the front passenger exterior door handle.

Does the test lamp illuminate as the door handle is activated?

Go to Step 14

Go to Step 9

7 | Inspect the right front door handle lift switch signal circuit of the PDM for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 13
8 | Inspect the right front door handle lift switch signal circuit of the RCDLR for an open or high resistance. . Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 15
9 | Inspect the door latch motor control circuit for an open, high resistance, or short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 10
10 | Inspect the door latch motor control circuit for an open, high resistance, or short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 16
11 | Inspect the door handle switch signal circuit of the unlatch enable switch for a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 17
12 | Inspect the door handle switch signal circuit of the unlatch enable switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 13
13 | Inspect the front passenger door handle switch ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 17
14 | Inspect for poor connection at the front passenger door latch assembly harness connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 18
15 | Check for poor connections at the harness connector of the RCDLR. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 19
16 | Inspect the poor connections at the appropriate passenger door module (PDM) harness connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 20
17 | Check for poor connections at the harness connector of the front exterior door handle switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 22 | Go to Step 21
18 | Replace the front passenger door latch assembly. Refer to Front Side Door Lock Actuator Replacement . Did you complete the replacement? | Go to Step 22 | --
19 | Replace the RCDLR. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 22 | --
20 | Replace the PDM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 22 | --
21 | Replace the front passenger exterior door handle switch. Refer to Front Side Door Outside Handle Replacement . Did you complete the replacement? | Go to Step 22 | --
22 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2