Immobilizer-Keyless Control Unit Input Test
SRS components are located in this area. Review the SRS component locations and the precautions and procedures before doing repairs or service.

NOTE:
Make sure the fuses associated with the system is OK.
If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

1.
Turn the vehicle to the OFF (LOCK) mode.

2.
Disconnect the immobilizer-keyless control unit 7P connector.
Immobilizer-Keyless Control Unit 7P Connector (female terminals)
3.
Inspect the connector and socket terminals to be sure they are all making good contact:
If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
If the terminals are OK, go to step 4.

4.
Reconnect the connector to the immobilizer-keyless control unit, do the following input tests:
If any test indicates a problem, find and correct the cause, then recheck the system.
If all the input tests prove OK, replace the immobilizer-keyless control unit.

NOTE: After replacing the immobilizer-keyless control unit, and do the immobilizer key registration.

Cavity
Wire
Test condition
Test: Desired result
Possible cause if desired result is not obtained
7
WHT
Under all conditions
Measure the voltage to ground:
There should be battery voltage.
An open or high resistance in the wire
6
BLU
Vehicle ON mode
Measure the voltage to ground:
There should be battery voltage.
An open or high resistance in the wire
1
BRN
In all power modes
Measure the voltage to ground:
There should be less than 0.2 V.
Poor ground (G401)
An open or high resistance in the ground wire
3
LT BLU
Under all conditions
Measure the voltage to ground:
There should be pulse voltage (digital signal).
Faulty control unit on the K LINE
Short to ground in the K LINE wire