Schematic Reference: Door Lock/Indicator Schematics

Connector End View Reference: Power Door Systems Connector End Views

Did you perform the Diagnostic System Check for the door systems?

Go to Step 2

Go to Diagnostic System Check - Door Systems

Verify that the power door locks are inoperative.

Does the system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Are all of the door locks completely inoperative?

Go to Step 4

Go to Step 12

1. Disconnect the driver side door lock switch connector.
2. Probe the battery positive voltage circuit at the disconnected door lock switch connector with a test lamp connected to ground.

Did the test lamp illuminate?

Go to Step 8

Go to Step 5

Test the battery positive feed circuit to the door lock switches for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 6

Test the battery positive voltage circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 7

Test the door lock and unlock control circuits for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 19

Test the door lock and unlock 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 22

Go to Step 9

Test the door lock actuator lock and unlock circuits for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 10

Test each ground circuit to the passenger door lock switch for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 11

1. Probe the door unlock control circuit at the disconnected door lock switch connector with a test lamp connected to battery positive voltage.
2. Press the passenger door lock switch to the Unlock position and note if the test lamp stops illuminating while the switch is pressed.
3. Probe the door lock control circuit at the disconnected door lock switch connector with a test lamp connected to battery positive voltage.
4. Press the passenger door lock switch to the Lock position and note if the test lamp stops illuminating while the switch is pressed.

Did the test lamp go out each time the switch was pressed for the appropriate circuit being tested?

Go to Step 17

Go to Step 18

Are one of the door lock switches inoperative?

Go to Step 13

Go to Step 14

Test the battery positive voltage circuit to the inoperative door lock switch for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 16

Test the door lock actuator lock/unlock circuits to the inoperative door lock actuator for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 15

Inspect for poor connections at the door lock actuator. 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 22

Go to Step 20

Inspect for poor connections at the inoperative 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 22

Go to Step 21

Inspect for poor connections at the driver 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 22

Go to Step 21

Inspect for poor connections at 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 22

Go to Step 21

Repair the short to ground in the door lock actuator lock or unlock circuits. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

Go to Step 22

--

Replace the defective door lock. Refer to Front Side Door Lock Replacement or Rear Door Lock Replacement .

Did you complete the repair?

Go to Step 22

--

Replace the defective door lock switch. Refer to Door Lock Switch Replacement .

Did you complete the repair?

Go to Step 22

--

1. Replace the PWR ACC 15A Fuse if necessary.
2. Operate the system in order to verify the repair.

Did you find and correct the condition?

System OK

Go to Step 2

Schematic Reference: Door Lock/Indicator Schematics

Connector End View Reference: Power Door Systems Connector End Views

Did you perform the Diagnostic System Check for the door systems?

Go to Step 2

Go to Diagnostic System Check - Door Systems

Verify that the power door locks are inoperative.

Does the system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Are all of the door locks inoperative?

Go to Step 5

Go to Step 4

Do the door locks operate from both of the door lock switches?

Go to Step 7

Go to Step 6

1. Remove the door lock/unlock relay.
2. Probe the battery positive voltage circuit, to the door lock/unlock relay with a test lamp connected to ground.

Did the test lamp illuminate?

Go to Step 11

Go to Step 8

1. Disconnect the door lock switch that is not operating the system.
2. Probe the battery positive voltage circuit, at the door lock switch connector, with a test lamp connected to ground.

Did the test lamp illuminate?

Go to Step 12

Go to Step 19

1. Disconnect the inoperative door lock actuator.
2. With a test lamp, probe the door lock actuator lock and unlock circuits, at the door lock actuator connector.
3. Press a door lock switch to the lock and unlock position.

Did the test lamp illuminate when the door lock switch was pressed to the lock and unlock position?

Go to Step 15

Go to Step 13

Test the door lock actuator lock and unlock circuits for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 9

Test the battery positive feed circuit to the door lock/unlock relay for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 10

Test the battery positive feed circuit to the door lock/unlock relay for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 17

With the door lock relay disconnected, probe the ground circuit at the door lock/unlock relay connector, with a test lamp connected to battery positive voltage.

Did the test lamp illuminate?

Go to Step 13

Go to Step 18

Test the door lock and unlock control circuits from the disconnected door lock switch for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 14

Test for an open in the door lock actuator lock and unlock circuits. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 16

Inspect for poor connections at the 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 23

Go to Step 20

Inspect for poor connections at the door lock actuator. 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 23

Go to Step 21

Inspect for poor connections at the relay connector. 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 23

Go to Step 22

Repair the poor connection at the Fuse Block. Refer to Connector Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 23

--

Repair the open in the ground circuit to the relay block. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 23

--

Repair the open in the battery positive voltage circuit to the door lock switch. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 23

--

Replace the defective door lock switch. Refer to Door Lock Switch Replacement .

Did you complete the repair?

Go to Step 23

--

Replace the defective door lock actuator. Refer to Front Side Door Lock Replacement or Rear Door Lock Replacement .

Did you complete the repair?

Go to Step 23

--

Replace the defective relay. Refer to Power Door Systems Component Views .

Did you complete the repair?

Go to Step 23

--

1. Replace the PWR ACC 15A Fuse if necessary.
2. Operate the system in order to verify the repair.

Did you find and correct the condition?

System OK

Go to Step 2