Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo Brera and Spider Factory Service Manual (2005-2010)23 · Fault diagnosis
23 · Diagnostics

Esp warning light on

Make
Alfa Romeo
Model
Brera and Spider Factory Service Manual
Year
2005–2010
Section
Instrument panel › Esp warning light on
Fault diagnosisEsp warning light on

ESP WARNING LIGHT ON

N.B.: The brake node sends the ABS warning light on message via the C-CAN to the Body Computer which makes it available via the gateway to the Instrument Panel Node through the B-CAN.

If there are problems in the C-CAN, the control unit warning lights for this network will light up. The "CAN INFORMATION" check is designed for this eventuality

0PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION

Connect the EXAMINER diagnostic equipment and check the following at the CAN INFORMATION:

  • No control units inactive
  • No faulty control units
  • No control units with faulty CAN
Move on to Step 11. Fault on CAN network1. Continue following the instructions for the diagnostic equipment
2. Impossible to converse with the Body Computer2. Move on to Step 7
1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION

Keeping the diagnostic equipment connected, check the following at the BRAKE NODE:

  • No system/component errors
  • No CAN faults
Move on to Step 21. System/components faulty1. Continue following the instructions for the diagnostic equipment
2. Fault on C-CAN2. Move on to Step 7
2CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Using the Examiner check, in the Instrument Panel Node ambient, that there are no errors and that the parameters are present.Move on to Step 3Presence of errorsContinue following the diagnostic equipment information
3ELECTRICAL POWER SUPPLY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check that the electrical power supply for the Instrument Panel Node is correctMove on to Step 4Electric power supply positive and/or earth faultyReplace defective component (in the case of a fuse, find out what caused it to blow).
4ELECTRICAL CONNECTIONS CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the electrical connections betwen the Body Computer and the Instrument Panel, in particular that each individual pin is correctly connected.Move on to Step 5Electrical connections not working.Renew the damaged electrical connections.
5ACTIVE DIAGNOSIS CHECKALL OKPROBLEMS ENCOUNTEREDACTION
With the Examiner in the Instrument Panel Node ambient check that the ESP warning light is correctly activated in Active Diagnosis.Move on to Step 6The ESP warning light does not flash

Replace the Instrument Panel

Op. 5560B10 CONTROL PANEL - R+R

6CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Using the Examiner check, in the Body Computer ambient, that there are no errors and that the parameter specified varies.Move on to Step 91. Impossible to connect to the Body Computer control unit1. Move on to Step 7
2. Presence of errors.2. Continue following the diagnostic equipment instructions.
3. The parameter values do not change3. Move on to Step 8
7ELECTRICAL POWER SUPPLY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check that the electrical power supply for the Body Computer Node is correctMove on to Step 8Electric power supply positive and/or earth faultyReplace defective component (in the case of a fuse, find out what caused it to blow).
8CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Using the Examiner, check whether it is possible to connect to the Body Computer Node.Move on to Step 9Impossible to connect to the Body Computer control unit.

Replace Body Computer

Op. 5505A32 BODY COMPUTER - R.R

9CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer presentEnd of diagnosis

Parts & tools for this job For 2005 Alfa Romeo Brera

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