Page 49 of 85

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 49V2 MR-372-J84-38C050$496_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
DF187
PRESENT
BRAKE LIGHT ACTIVATION RELAY CIRCUIT
NOTESSpecial notes:
This fault does not cause the warning lights to come on or a fault message on the
instrument panel.
Check for + 12 V under + after ignition feed between tracks 1 and 5 of the brake lights on relay mounting.
If the voltage is incorrect, check the wiring harness.
Check the condition and wiring of the computer and brake lighting on relay connections.
Check and ensure the continuity of the following connections:
Relay mounting track 1Passenger compartment fuse box and relay
Relay mounting track 2 Track 22 computer connector
Relay mounting track 3Brake light connector
Relay mounting track 4 Track 30 computer connector
Also check the insulation between these connections.
If the controls are OK, check the brake lights on relay. Replace the brake lights on relay if necessary.
Clear the computer fault memory.
Exit fault finding mode, switch off the ignition, carry out a road test and then check again with the diagnostic tool.
If the fault is still present, contact the Techline.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_DF187P/ESPBOSCH_V09_DF187P/ESPBOSCH_V0A_DF187P/
ESPBOSCH_V0B_DF187P/ESPBOSCH_V11_DF187P/ESPBOSCH_V12_DF187P
Page 50 of 85

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 50V2 MR-372-J84-38C050$496_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
DF188
PRESENT
OR
STOREDBRAKE LIGHT SWITCH CIRCUIT
1.DEF : inconsistency
2.DEF : permanent high signal
NOTESSpecial notes:
1.DEF: This code means that the computer does not detect that the pedal is pressed
during braking (pedal pressed in relation to the pressure sensor).
2.DEF: This code means that the computer detects the pedal as pressed all the time
or that the brake light bulbs are the wrong ones.
Conditions for applying the fault finding procedure to stored faults:
Clear the stored fault, carry out a road test at a speed of > 36 mph (60 km/h) and test
the brakes with ABS regulation.
Using the diagnostic tool, check on the statuses screen that ET017 Brake pedal recognises the correct pressed
and released positions of the brake pedal.
If the correct pedal position is not displayed, use the interpretation of ET017 Brake pedal.
If the fault is still present, contact the Techline.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_DF188 /ESPBOSCH_V09_DF188/ESPBOSCH_V0A_DF188/
ESPBOSCH_V0B_DF188 /ESPBOSCH_V11_DF188/ESPBOSCH_V12_DF188
Page 51 of 85

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 51V2 MR-372-J84-38C050$496_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
DF189
PRESENT
COMBINED SENSOR CIRCUIT
NOTESNone
Measure the voltage across tracks 3 and 6 of the combined sensor connector with + after ignition feed
switched on.
If the voltage is not approximately the same as + after ignition feed, contact the Techline.
Check the connection and condition of the combined sensor and computer connectors.
Visually inspect the sensor wiring.
Check and ensure continuity and the insulation of the connections between:
Sensor connector track 1 Track 18 computer connector
Sensor connector track 2 Track 37 computer connector
Sensor connector track 3Passenger compartment fuse box
Sensor connector track 4 Track 16 computer connector
Sensor connector track 5 Track 20 computer connector
Sensor connector track 6 Track 15 computer connector
Also check the insulation between these connections.
If the results of the checks are correct, reconnect the computer and the combined sensor.
Clear the computer fault memory. Exit fault finding mode and switch off the ignition.
Switch the ignition on and replace the sensor if the fault recurs.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_DF189P/ESPBOSCH_V09_DF189P/ESPBOSCH_V0A_DF189P/
ESPBOSCH_V0B_DF189P/ESPBOSCH_V11_DF189P/ESPBOSCH_V12_DF189P
Page 52 of 85

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 52V2 MR-372-J84-38C050$496_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
DF190
PRESENT
COMBINED SENSOR
1.DEF : internal electronic fault of the sensor
2.DEF : sensor incorrectly fitted
NOTESSpecial notes:
None
1.DEF
NOTESNone
Check the connection and condition of the combined sensor and computer connectors.
Carry out a visual inspection of the sensor wiring.
Check and ensure continuity and the insulation of the connections between:
Sensor connector track 1 Track 18 computer connector
Sensor connector track 2 Track 37 computer connector
Sensor connector track 3Passenger compartment fuse box
Sensor connector track 4 Track 16 computer connector
Sensor connector track 5 Track 20 computer connector
Sensor connector track 6 Track 15 computer connector
Also check the insulation between these connections. Repair if necessary.
If the fault is still present replace the combined sensor, taking care not to damage it.
If the combined sensor is replaced, it is imperative to clear the programming of the ESP sensors (Vdiag 09, 0A,
0B, 12 and 11) using command RZ003 "ESP sensor programming".
2.DEF
NOTESNone
Check that the combined sensor is correctly fitted and attached to the vehicle chassis. The combined sensor is
marked with an arrow. You must make sure that this arrow is pointing to the front of the vehicle.
Clear the computer's fault memory and clear the ESP sensor programming (Vdiag 09, 0A, 0B, 12 and 11) with
command RZ003 “ESP sensor programming”.
Switch off the ignition and carry out a road test.
AFTER REPAIRClear the computer fault memory. If the combined sensor has been replaced, erase the
ESP sensor programming (Vdiag 09, 0A, 0B and 11) with command RZ003 ESP
sensor programming.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_DF190P/ESPBOSCH_V09_DF190P/ESPBOSCH_V0A_DF190P/
ESPBOSCH_V0B_DF190P/ESPBOSCH_V11_DF190P/ESPBOSCH_V12_DF190P
Page 53 of 85
ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 53V2 MR-372-J84-38C050$496_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
DF191
PRESENT
ESP ON/OFF BUTTON CIRCUIT
NOTESSpecial notes:
This fault does not cause the warning lights to come on or a fault message on the
instrument panel. The ESP is not faulty, but disabling the ESP with the button is not
possible.
Apply the interpretation of status ET023 ESP on/off button.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_DF191P/ESPBOSCH_V09_DF191P/ESPBOSCH_V0A_DF191P/
ESPBOSCH_V0B_DF191P/ESPBOSCH_V11_DF191P/ESPBOSCH_V12_DF191P
Page 54 of 85

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 54V2 MR-372-J84-38C050$496_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
DF193
PRESENT
OR
STOREDINVALID INJECTION MULTIPLEX SIGNALS
NOTESSpecial notes:
Although it is stored in the computer, the ABS/ESP system is not faulty. The ESP is
deactivated due to unusable information from the injection system. Perform fault
finding on the injection system using the diagnostic tool.
Note:
The injection does not always store these transient faults as quickly as the ABS/ESP
system.
If no fault is stored in the injection computer, start the engine; if there is no fault present,
contact the Techline. Once the fault in the injection system has been repaired, clear
the ABS/ESP computer fault memory.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after starting the engine.
Carry out a multiplex network test and check the injection system with the diagnostic tool.
If the fault is still present, contact the Techline.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_DF193 /ESPBOSCH_V09_DF193/ESPBOSCH_V0A_DF193/
ESPBOSCH_V0B_DF193 /ESPBOSCH_V11_DF193/ESPBOSCH_V12_DF193
Page 55 of 85

ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 55V2 MR-372-J84-38C050$496_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
DF194
PRESENT
OR
STOREDELECTRIC POWER ASSISTED STEERING MULTIPLEX SIGNALS
INVALID
1.DEF : inconsistency
2.DEF : fault detected
NOTESSpecial notes:
Although it is stored in the computer, the ABS/ESP system is not faulty. The ESP is
deactivated due to unusable information from the electric power steering system. Run
fault finding on the electric power steering with the diagnostic tool.
Note:
The electric power steering does not always store these transient faults as quickly as
the ABS/ESP system.
If no fault is stored in the electric power steering computer memory, start the engine; if
no present fault is displayed, contact the Techline. Once the fault in the electric power
steering system has been repaired, clear the ABS/ESP computer fault memory.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after starting the engine.
1.DEF
NOTESNone
Check the condition of the axle assemblies (impacts, damage, etc.) and the conformity and good condition of
the tyres.
Check the axle assemblies, adjust if necessary.
Calibrate the steering wheel angle in the electric power-assisted steering using the diagnostic tool.
Ensure that the combined sensor is properly fixed to the body in the right direction (arrow towards the front of
the vehicle).
If all the checks are OK, clear the computer fault memory and clear the ESP sensor programming (Vdiag 09, 0A,
0B, 12 and 11) using command RZ003 "ESP sensor programming".
Carry out a road test.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
ESPBOSCH_V08_DF194 /ESPBOSCH_V09_DF194/ESPBOSCH_V0A_DF194/
ESPBOSCH_V0B_DF194 /ESPBOSCH_V11_DF194/ESPBOSCH_V12_DF194
Page 56 of 85
ANTI-LOCK BRAKING SYSTEM
BOSCH 8.0 ESP Vdiag No.: 08, 09, 0A, 0B, 11, 1238C
38C - 56V2 MR-372-J84-38C050$496_eng.mif
BOSCH 8.0 ESP
Vdiag No.: 08, 09, 0A,
0B, 11, 12
DF194
CONTINUED
2.DEF
NOTESNone
Carry out fault finding on the electric power steering using the diagnostic tool and repair if necessary.
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.