83A-5
MR-413-X44-83A000$056.mif
V5
INSTRUMENT PANEL
Fault finding - Introduction
Vdiag No.: 04, 08
83A
4. FAULT FINDING PROCEDURE (CONTINUED)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring harness may temporarily remove the cause of a fault.
Electrical measurements of voltage, resistance and insulation are generally correct, especially if the fault is not
present when the analysis is made (stored fault).
Visual inspection
Look for damage under the bonnet and in the passenger compartment.
Carefully check the fuses, insulators and wiring harness routing.
Look for signs of oxidation.
Tactile inspection
While manipulating the wiring harness, use the diagnostic tool to note any change in fault status from stored to
present.
Make sure that the connectors are properly locked.
Apply light pressure to the connectors.
Twist the wiring harness.
If there is a change in status, try to locate the source of the fault.
Inspection of each component
Disconnect the connectors and check the appearance of the clips and tabs, as well as the crimping (no crimping on
the insulating section).
Make sure that the clips and tabs are properly locked in the sockets.
Check that no clips or tabs have been dislodged during connection.
Check the clip contact pressure using an appropriate model of tab.
Resistance check
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to the + 12 V feed or with another wire.
If a fault is detected, repair or replace the wiring harness.
83A-28
MR-413-X44-83A000$448.mif
V5
INSTRUMENT PANEL
Fault finding - Interpretation of faults
Vdiag No.: 04, 08
83A
DF019
PRESENT
OR
STOREDBATTERY VOLTAGE
1.DEF: Battery undervoltage
2.DEF: Battery voltage too high
3.DEF: Impossible measurement
NOTES3.DEF: Impossible measurement related to an internal computer fault.
Contact the Techline.
1.DEF
2.DEF
NOTESSpecial notes:
1.DEF: The battery fault is declared present if the battery
voltage is less than 5.5 V.
2.DEF: The battery fault is declared present if the battery
voltage is greater than 16 V.
Check fuses F12 (5A) and F8 (15A) of component 1016
Manipulate the wiring harness between the instrument panel and the battery in order to produce a change in fault
status (Present → Stored).
Look for any harness damage, and check the connection and condition of the battery and its connections.
Look for possible damage to the wiring harness, check the connection and condition of the instrument panel
connector.
If there is a repair method (see Technical Note 6015A, Electrical wiring repair, Wiring: Precautions for
repair) repair the connector, otherwise replace the wiring.
Check the condition of the battery and the charging circuit (see Technical Note 6014A, Checking the
charging circuit).
Check the condition of the vehicle earths.
Check for + 12 V on connection BP49 of component 247.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair) repair the wiring, otherwise replace it.
With the ignition on, check for + 12 V on connection AP43 of component 247.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair) repair the wiring, otherwise replace it.
Check for earth on connection MAN of component 247.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair) repair the wiring, otherwise replace it.
If the fault persists, contact the Techline.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
TDB_V04_DF019 / TDB_V08_DF019
