Code 29: Engine Control Module Memory Check

If fault Code 29 is detected, all other faults are unreliable and must therefore be ignored. Proceed as follows:

1. Leave battery connected.
2. Switch ignition off.
3. Wait for approximately 5 seconds.
4. Disconnect and reconnect Engine Control Module (ECM) connector.
5. Switch ignition on and check display unit.

If code 29 is detected again, substitute ECM and restart test sequence.