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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1284 (Door System, Mirror System & Window System) >> Diagnostic Information and Procedures >> Power Door Locks Inoperative - Passenger Door

Power Door Locks Inoperative - Passenger Door

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Power Door Locks Inoperative - Passenger Door

Step Action Yes No
Schematic Reference: Door Control Module Schematics 
Connector End View Reference: Power Door Systems Connector End Views 
1 Did you perform the Door Systems Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Door Systems 
2 Verify that the passenger door power door lock inoperative fault is present.
Does the passenger door power door lock operate normallly?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Is the driver window, driver door lock and power mirrors inoperative also? Go to Step 8  Go to Step 4 
4 Is the passenger window inoperative also? Go to Step 9  Go to Step 5 
5
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Observe the Door Lock Switch and Door Unlock Switch parameters in the Left Door Control Module data list.
  4. Actuate the driver door lock switch to LOCK and UNLOCK.
Does the scan tool display Active for the Door Lock Switch and Door Unlock Switch parameters?
Go to Step 6  Go to Step 10 
6
  1. Observe the Door Lock Switch and Door Unlock Switch parameters in the Right Door Control Module data list.
  2. Actuate the passenger door lock switch to LOCK and UNLOCK.
Does the scan tool display Active for the Door Lock Switch and Door Unlock Switch parameters?
Go to Step 7  Go to Step 11 
7
  1. Turn OFF the ignition.
  2. Disconnect the passenger door latch C3 connector.
  3. Turn ON the ignition, with the engine OFF.
  4. Connect a test lamp between the door lock actuator lock control circuit of the passenger door latch C3 connector and the door lock actuator unlock control circuit of the passenger door latch C3 connector.
  5. Actuate the driver door lock switch to LOCK and UNLOCK.
Does the test lamp illuminate in both directions?
Go to Step 13  Go to Step 12 
8 Test the driver door switch ground circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 21  Go to Step 14 
9 Test the passenger door switch ground circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 21  Go to Step 15 
10 Test the driver door lock switch signal circuits for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 21  Go to Step 14 
11 Test the passenger door lock switch signal circuits for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 21  Go to Step 15 
12 Test the passenger door lock actuator control circuits for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 21  Go to Step 16 
13 Inspect for poor connections at the harness connectors of the passenger door latch. 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 21  Go to Step 17 
14 Inspect for poor connections at the harness connector of the driver door 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 21  Go to Step 18 
15 Inspect for poor connections at the harness connector of the passenger door 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 21  Go to Step 19 
16 Inspect for poor connections at the harness connector of the passenger door module (PDM). 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 21  Go to Step 20 
17 Replace the passenger door latch. Refer to Lock Replacement - Door .
Did you complete the replacement?
Go to Step 21  -
18 Replace the driver door switch. Refer to Front Door Switch Replacement .
Did you complete the replacement?
Go to Step 21  -
19 Replace the passenger door switch. Refer to Front Door Switch Replacement .
Did you complete the replacement?
Go to Step 21  -
20 Replace the passenger door module. Refer to Door Control Module Replacement .
Did you complete the replacement?
Go to Step 21  -
21 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2