For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Vehicle Theft Deterrent (CTD) System Check? | -- | Go to Step 2 | Go to Content Theft Deterrent (CTD) System Check
2 |

1. Disconnect the inoperative door lock cylinder switch.
2. With the door lock cylinder switch in the unlock position, use a digital multimeter (DMM) in order to measure the resistance of the inoperative door lock cylinder switch.

Is the resistance within the specified range?

0-5 ohms

Go to Step 4

Go to Step 3

3 | Replace the inoperative door lock cylinder switch. Refer to Door Lock Cylinder Replacement in Doors. Is the repair complete? | -- | Go to Content Theft Deterrent (CTD) System Check | --
4 | Use the DMM in order to measure the resistance between the inoperative door lock switch connector terminal B and ground. Is the resistance within the specified range? | 0-5 ohms | Go to Step 6 | Go to Step 5
5 | Repair the open in CKT 151 (BLK/WHT). Refer to Wiring Repairs in Wiring Systems. | -- | Go to Content Theft Deterrent (CTD) System Check | --
6 |

1. Disconnect the remote function actuator (RFA) module.
2. Use the DMM in order to measure the resistance between the inoperative door lock switch connector terminal A and the RFA module harness connector terminal E11.

Is the resistance within the specified range?

0-5 ohms

Go to Step 8

Go to Step 7

7 | Repair the open in CKT 262 (LT GRN). Refer to Wiring Repairs in Wiring Systems. | -- | Go to Content Theft Deterrent (CTD) System Check | --
8 | Replace the RFA module. Refer to Remote Control Door Lock Receiver Replacement in Keyless Entry. Did you complete the repair? | -- | Go to Content Theft Deterrent (CTD) System Check | --