Test results

Check that the Cruise Control system controls are working properly, in particular the "RECALL" function

Go to Step 2

1. No continuity for lever contacts

2. Incorrect operation of engine management control unit

1.Replace the Cruise Control steering wheel interface assembly

 Op. 5550A10 STALK UNIT ASSEMBLY - R+R

2. Replace the engine management control unit

 Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R

Check that the connector for the cruise control lever is receiving the correct supply from an earth signal coming from the Body Computer

 See E5060 CRUISE CONTROL

Go to Step 3

1. Earth signal connection interrupted

2. K line between Cruise lever and Body short circuited to V batt

1. Renew the connection with the body computer

 See E5060 CRUISE CONTROL

2. Restore the correct insulation

Check the electrical continuity of the wiring between the cruise control system control and the body computer: wiring diagram

 See E5060 CRUISE CONTROL

Go to Step 4

Connections not correct

Restore the correct connections

 See E5060 CRUISE CONTROL

Check the correct operation of the CAN using the Examiner

End of diagnosis

1. CAN connections defective

2. Body Computer defective

1. Restore the correct connections

2. Replace the body computer

 Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.