38C-61
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool
If the fault is still present, contact the Techline.
V3 MR-413-X44-38C050$102.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of faults38C
Bosch 8.1 ESP
Vdiag No.: 05
DF190
CONTINUED
3.DEFNOTESNone.
Check the tightness and condition of the battery terminals (see 80A, Battery).
Check the charging circuit (see 16A, Starting - Charging).
Apply the fault finding procedure for fault DF189 Combined sensor circuit.
38C-66
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool
If the fault is still present, contact the Techline.
V3 MR-413-X44-38C050$102.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of faults38C
Bosch 8.1 ESP
Vdiag No.: 05
DF300
PRESENT
OR
STOREDPUMP MOTOR CONTROL CIRCUIT
DEF: Abnormal voltage.
NOTESUse the Wiring Diagram Technical Note for New Twingo.
Check the tightness and condition of the battery terminals (see 80A, Battery).
Check the charging circuit (see 16A, Starting - Charging).
Check the condition and position of fuse F1 (40A) and F2 (30A) in the engine fuse box
(see 81C, Fuse box).
Check the connection and condition (possible wiring damage) of the connectors of components 1094, 1834,
1016 and intermediate connector R107.
If the connector is faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the connector, otherwise replace the wiring.
With the connector of component 1094 disconnected, check the insulation and continuity of connections MAH
of component 1094 (tightness, oxidation, etc.).
Connectors of components 1094, 1175, 583 and intermediate union R107 disconnected,
–check the insulation and continuity of connection AP5 between component 1094 and intermediate
connector R107.
–Check the insulation and continuity of connection AP5 between intermediate connector R107 and
component 1016.
–Check the insulation and continuity of connection BP14 between components 1094 and 1834.
–Check the insulation and continuity of connection BP8 between components 1094 and 1834.
If the connections are faulty (see Technical Note 6015A, Electrical wiring repair, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
ESP_V05_DF300
38C-87
AFTER REPAIRClear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V3 MR-413-X44-38C050$180.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart38C
Bosch 8.1 ESP
Vdiag No.: 05
ALP1 No dialogue with the ABS/ESP computer
NOTESOnly address this customer complaint after a complete check with the diagnostic tool.
Use the Wiring Diagram Technical Note for New Twingo.
Try to establish dialogue with an ESP computer on another vehicle to make sure that the diagnostic tool is not
faulty. If the tool is not at fault, and dialogue cannot be established with any other computer on the same vehicle,
the cause could be a faulty computer interfering on the multiplex network.
Check the tightness and condition of the battery terminals (see 80A, Battery).
Check the charging circuit (see 16A, Starting - Charging).
Check that the power supply to the diagnostic socket is correct:
Check for + 12 V on connection BP19 of component 225.
Check for earth on connections MAM and NAM of component 225.
If the connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
Apply the fault finding procedure for specification 1. DEF of fault DF001 Computer supply.
Carry out fault finding on the multiplex network using the diagnostic tool (see 88B, Multiplexing).
If dialogue has still not been established after these checks, contact Techline.
ESP_V05_ALP1
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault finding chart
