SECURITY LIGHT: 15, WDS OR EQUIVALENT: B1601

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Detection Condition

• The PCM has detected unprogrammed key ID number.

Possible Cause

• No keys have been programmed after replacing the PCM.

• Unprogrammed key used

• Attempt made to program a ninth key

• PCM malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION

1
VERIFY NUMBER OF PROGRAMMED KEYS
• Using the WDS or equivalent, perform the PID/data monitor inspection and confirm the number of programmed keys.
• Are one or more keys programmed?
Yes
Go to the next step.
No
Go to Step 3.
2
VERIFY NUMBER OF PROGRAMMED KEYS
• Using the WDS or equivalent, perform the PID/data monitor inspection and confirm the number of programmed keys.
• Are eight keys programmed?
Yes
Using the WDS or equivalent, clear the key ID numbers if necessary, then go to the next step.
No
Go to the next step.
3
Inspect the PCM.
• Using the WDS or equivalent, program the key ID number.
• Using the programmed key, turn the ignition switch to the ON position.
• Is the DTC displayed again?
- Security light: 15
- WDS or equivalent: B1601
Yes
Replace the PCM and perform the resetting procedure for the immobilizer system when replacing the PCM.
No
DTC inspection completed.