194002485 - K062 ABS AND HANDBRAKE WARNING LIGHTS BOTH ON

The handbrake lever is released
The handbrake warning light also indicates a low brake fluid level and, if it is on at the same time as the ABS warning light, a malfunction of the EBD system. The command to switchon the handbrake warning light is sent by the switch on the lever to the Body Computer Node which makes it available on the B-CAN to the Instrument Panel Node.
1PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION

  • Connect an EXAMINER and check the following on CAN NETWORK INFORMATION:

  • No faulty control units

  • No control units with faulty CAN line
Move on to Step 21. Fault on CAN network1. Continue following the instructions for the diagnostic equipment
2. Communication impossible with the Body Computer2. Move on to Step 8
2CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Keeping the diagnostic equipment connected, check that there are no CAN faults at the BRAKE NODEMove on to Step 2Fault on C-CAN networkMove on to Step 8
3CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Using the Examiner diagnostic equipment check, in Instrument Panel mode, that there are no errors and that the parameters are present.Move on to Step 4Presence of errorsContinue following the instructions on the diagnostic instrument
4ELECTRICAL POWER SUPPLY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the electricity supply to the Instrument Panel Node is correct.Move on to Step 5Fault in positive electrical supply and/or earthReplace defective component (in the case of a fuse, find out what caused it to blow).
5CHECK ELECTRICAL CONNECTIONSALL OKPROBLEMS ENCOUNTEREDACTION
Check the electrical connections between the Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connected.Move on to Step 6Electrical connections not operationalRenew the damaged electrical connections
6ACTIVE DIAGNOSIS CHECKALL OKPROBLEMS ENCOUNTEREDACTION
With the Examiner in the Instrument Panel Node ambient check that the warning lights are correctly activated in Active Diagnosis.Move on to Step 7The warning lights do not flashReplace the Instrument Panel    Op. 5560B10 CONTROL PANEL - R+R
7CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Using an Examiner check, in Body Computer Node mode, that there are no errors.Move on to Step 101. Impossible to connect to the Body Computer control unit.1. Move on to Step 8
2. Presence of errors2. Continue by following the instructions on the diagnostic instrument
8ELECTRICAL POWER SUPPLY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the electricity supply to the Body Computer Node is correct.Move on to Step 9Fault in positive electrical supply and/or earthReplace defective component (in the case of a fuse, find out what caused it to blow).
9CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Use an Examiner to check the possibility of connection to the Body Computer NodeMove on to Step 10Impossible to connect to the Body Computer control unit.Replace Body Computer    Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.
10CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer presentEnd of diagnosis