Faulty signal. Permanent fault: Preparation: Information

This diagnostic trouble code (DTC) indicates that the immobilizer code does not match between the engine control module (ECM) and the central electronic module (CEM). This may be because:

• the immobilizer code in the engine control module (ECM) is incorrect i. e. the code does not correspond to the code stored in the central electronic module (CEM)
• the engine control module (ECM) is not programmed and has no immobilizer code
• the immobilizer code in the central electronic module (CEM) is incorrect
• the central electronic module (CEM) is not programmed and has no immobilizer code
• the engine control module (ECM) is damaged
• the central electronic module (CEM) is damaged.

HINT: Read off the diagnostic trouble codes (DTCs) for the central electronic module (CEM). 

For further information about this diagnostic trouble code (DTC), select Information, then DTC information.

Other information: 

• To access and replace the engine control module (ECM), see Engine control module (ECM), replacing
• To access or replace the central electronic module (CEM), see Central electronic module (CEM), replacingCentral electronic module (CEM), replacing
• For information about signals on 5-cylinder engines, see Signal specification 
• For information about signals on 6-cylinder engines, see Signal specification .

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  Refer to Verification