CIS Motronic Engine Code 3B

Drive vehicle for a minimum of 5 minutes to allow fault information to be stored. On California models, when ECU detects a temporary fault, the CHECK light on the instrument panel will flash. Light will continue to flash until ignition is turned off. ECU may clear fault on the next engine start, and CHECK light will stop flashing unless fault is detected again. Vehicle will have to be test driven for at least 5 minutes to reset fault. When ECU detects a permanent fault, CHECK light will flash and fault will remain in ECU memory until physically erased.

On Federal models, retrieving codes requires use of a VAG 1551 tester.

On Federal and California models, codes must be retrieved before they can be erased, and codes must be erased with VAG 1551 . Follow tool manufacturers instructions and screen prompts.