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 SECURITY LIGHT: DTC 15 (WDS OR EQUIVALENT: DTC B1601)

SECURITY LIGHT: DTC 15 (WDS OR EQUIVALENT: DTC B1601)

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DTC 15 (B1601)

PCM received incorrect ID number from key (transponder).

POSSIBLE CAUSE

• No keys have been registered after installation of new PCM
• Unregistered key detected
• Attempt made to register a ninth key
Note
• A maximum of only eight keys can be registered for a single vehicle.
• Defective PCM

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY REGISTERED KEY IN PCM
• Check following PID/DATA monitor using SST (WDS or equivalent).
- NUMKEYS
• Does NUMKEYS display more than 0?
Yes
Go to next step.
No
Go to Step 3.
2
VERIFY REGISTERED KEY IN PCM
• Check following PID/DATA monitor using SST (WDS or equivalent).
- NUMKEYS
• Does NUMKEYS display more than 8?
Yes
• Erase key ID number using SST (WDS) and register key ID number.
• Go to next step.
No
Go to next step.
3
INSPECT PCM
• Erase key ID number using SST (WDS) and register key ID number.
• Using registered key, turn ignition switch to ON position.
• Does security light or SST (WDS or equivalent) indicate DTC 15 (B1601) again?
Yes
Replace PCM and reprogram immobilizer system.
No
Troubleshooting is completed.