AUTOMATIC TRANSMISSION
Fault finding – Introduction23A
23A - 5V4 MR-372-J84-23A050$066.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
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 the voltage, resistance and insulation are generally correct, especially if the fault is not
present when analysing (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 or
present.
Check that the connectors are correctly 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).
Check that the clips and tabs are correctly locked in the sockets.
Make sure that no clips or tabs have been dislodged during connection.
Check the clip contact pressure using an appropriate model of tab.
Check the continuity/insulation
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to + 12 V or to another wire.
If a fault is detected, repair or replace the wiring harness.
AUTOMATIC TRANSMISSION
Fault finding – Interpretation of faults23A
23A-17V4 MR-372-J84-23A050$330.mif
SIEMENS TA2000
Vdiag No.: 10-11-15AUTOMATIC TRANSMISSION
Fault finding – Interpretation of faults
DF002
PRESENT
OR
STOREDCOMPUTER
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the ignition has been switched on.
Check that the computer earth is connected correctly to the vehicle's left-hand front side member.
Measure the battery voltage, it should be between 11.8 V and 13.2 V.
Check the cleanliness and condition of the connections.
Check the 20A permanent computer feed fuse F15 on connection BP42 in the Protection and Switching Unit.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check the cleanliness and condition of the connections.
Check the 5A computer after ignition feed fuse F5H on connection AP4 in the Protection and Switching Unit.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Disconnect the battery.
Disconnect the computer. Check the cleanliness and condition of the connections.
Disconnect connector PPM2 in the Protection and Switching Unit.
Use the Universal bornier Elé. 1681 to check the insulation, continuity and the absence of interference
resistance on the following connections:
●Connection code BP42 between components 119 and 1337.
●Connection code AP4 between components 119 and 1337.
●Connection code N between components 119 and 107.
If the connection(s) are faulty and if there is a repair method (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Reconnect the battery.
With the ignition on, check for 12 V on component 119, between the following connections:
●Connection code BP42.
●Connection code AP42.
If the connection(s) are faulty and if there is a repair method (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If 12 V is not found, there is a failure in the Protection and Switching Unit.
Run fault finding on the Protection and Switching Unit.
If the fault is still present, contact the Techline.
DPOTA2000_V10_DF002/DPOTA2000_V11_DF002/DPOTA2000_V15_DF002
MR-372-J84-23A050$330.mif
AUTOMATIC TRANSMISSION
Fault finding – Interpretation of faults23A
23A-45V4 MR-372-J84-23A050$330.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
DF095
PRESENT
OR
STOREDSELECTOR LEVER LOCK ELECTROMAGNET CIRCUIT
CO : Open circuit
CC.1 : Short-circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present when the gear lever is in position P.
Special notes:
Use bornier Elé. 1681 for all operations on the computer connectors.
Check the cleanliness and condition of the gear lever lock electromagnet connections.
With the ignition on, check for + 12 V, on connection AP43 of component 129.
–Disconnect the battery.
–Check fuse 5F in the Protection and Switching Unit, as well as the cleanliness and condition of the connections.
–Disconnect connector PPH2 in the Protection and Switching Unit.
–Check the cleanliness and condition of the connections.
Use the Universal bornier Elé. 1681. To check the insulation to earth and the continuity of the following
connection:
●Connection code AP43, between components 129 and 1337.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
With the ignition on, + 12 V is not present on connection AP43 of component 129, run fault finding on the
Protection and Switching Unit.
Disconnect the battery.
Disconnect the computer. Check the cleanliness and condition of the connections.
Use the universal bornier Elé. 1681. Check the continuity and insulation of the following connection:
●Connection code 5DU, between components 119 and 129.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Repair if necessary.
Measure the resistance of component 129 between the following connections:
●Connection code 5DU.
●Connection code AP43.
If the connection(s) are faulty and if there is a repair method (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
The resistance should be 40 ΩΩ Ω Ω
± 4 ΩΩ Ω Ω
at a temperature of approximately 20˚C.
Otherwise replace the gear lever lock electromagnet.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the
diagnostic tool.
DP0TA2000_V10_DF095/DP0TA2000_V11_DF095/DP0TA2000_V15_DF095
AUTOMATIC TRANSMISSION
Fault finding – Parameter interpretation23A
23A - 106V4 MR-372-J84-23A050$726.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
PR008
COMPUTER SUPPLY VOLTAGE
NOTESThere must be no present or stored faults.
All electrical consumers switched off.
Carry out a full battery and charge circuit check (see Technical Note 6014A, Charge circuit fault finding).
Disconnect the computer.
Check the condition and cleanliness of the contacts.
Check that the computer earth is properly connected to the vehicle's front left side member.
Check the cleanliness and condition of the connections.
Check the 20A permanent computer feed fuse F15 on connection BP42 in the Protection and Switching Unit.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check the cleanliness and condition of the connections.
Check the 5A computer after ignition feed fuse F5H on connection AP4 in the Protection and Switching Unit.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Disconnect the computer. Check the cleanliness and condition of the connections.
Disconnect connector PPM2 in the Protection and Switching Unit.
Use the Universal bornier Elé. 1681 to check the insulation, continuity and the absence of interference
resistance on the following connections:
●Connection code BP42 between components 119 and 1337.
●Connection code AP4 between components 119 and 1337.
●Connection code N between components 119 and 107.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Reconnect the battery.
With the ignition on, check for 12 V on component 119, between the following connections:
●Connection code BP42.
●Connection code AP42.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If 12 V is not found, there is a failure in the Protection and Switching Unit.
Run fault finding on the Protection and Switching Unit.
AFTER REPAIRRepeat the conformity check from the start.
DP0TA2000_V10_PR008/DP0TA2000_V11_PR008 /DP0TA2000_V15_PR008
AUTOMATIC TRANSMISSION
Fault finding – Dealing with command modes23A
23A - 113V4 MR-372-J84-23A050$792.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
AC024
ACTUATOR SEQUENTIAL CONTROL
NOTESCheck the 20A permanent computer feed fuse marked 15 in the Protection and
Switching Unit. Check the cleanliness and condition of the connections.
Check the 5A after-ignition computer feed fuse marked 5H in the Protection and
Switching Unit.
Replace the fuses if necessary.
Check the cleanliness and condition of the connections.
Engine speed zero and gear lever in position P or N.
If the solenoid valves are not activated, check:
–the gearbox oil level,
–the cleanness and condition of the computer connector and modular connector,
Check the insulation, continuity and absence of interference resistance on the following connections:
●Connection code 5AU between components 119 and 754.
●Connection code 5AV between components 119 and 754.
●Connection code 5AW between components 119 and 754.
●Connection code 5AX between components 119 and 754.
●Connection code 5AY between components 119 and 754.
●Connection code 5DL between components 119 and 754.
●Connection code 5DM between components 119 and 754.
●Connection code 5BA between components 119 and 754.
●Connection code 5AZ, between components 119 and 754.
●Connection code 5DD between components 119 and 1019.
●Connection code 5DN between components 119 and 1019.
If the fault is still present, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
DP0TA2000_V10_ACO24/DP0TA2000_V11_AC024 /DP0TA2000_V15_AC024
AUTOMATIC TRANSMISSION
23A
23A-115V4 MR-372-J84-23A050$924.mif
SIEMENS TA2000
Vdiag No.: 10-11-15AUTOMATIC TRANSMISSION
Fault finding – Fault Finding Chart
ALP1 No dialogue with the computer
NOTESNone.
Try the diagnostic tool on another vehicle.
Check:
–the connection between the diagnostic tool and the diagnostic socket (connection and cable in good condition),
–the power supply to the computer,
–the engine and passenger compartment fuses.
Check that the CLIP sensor is supplied by connections BP32, MAN and NAM of component 225, displayed when
both red indicator lights on the sensor illuminate.
Make sure that the CLIP sensor is connected to the computer's USB port.
Make sure the CLIP sensor is communicating properly with the vehicle's computers; this can be seen by the two
green diodes on the sensor lighting up.
Check the following connections on component 225:
●Connection code AP43 (+ after ignition feed).
●Connection code BP32 (+ battery).
●Connection code MAN (earth).
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
No communication on line K
Check the continuity, insulation and absence of interference resistance on line K of the diagnostic socket.
Disconnect the automatic transmission computer connector to check the insulation, continuity and the absence
of interference resistance of the following connections:
●Connection code AP4 between components 119 and 1337.
●Connection code BP42 between components 119 and 1337.
●Connection code N between components 119 and 107.
●Connection code 3HK between components 119 and 225.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
DP0TA2000_V10_ALP1/DP0TA2000_V11_ALP1/DP0TA2000_V15_ALP1
MR-372-J84-23A050$924.mif
AUTOMATIC TRANSMISSION
Fault finding – Fault Finding Chart23A
23A -122V4 MR-372-J84-23A050$924.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
ALP6 Reversing lights do not work
NOTESOnly refer to Customer complaints after carrying out a complete fault finding
procedure with the diagnostic tool and the conformity check.
Check:
–the condition of the fuses in the UPC.
–the condition of the bulbs.
–the condition of the bulb contacts. Repair if necessary.
–Check that the earth is present for the following connections:
●Connection code MAQ of component 172.
●Connection code MZ of component 173.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Switch off the ignition and disconnect the modular connector.
Switch on the ignition again and check for + 12 V after ignition feed on connection AP11 of component 485.
Switch off the ignition and check the continuity on the following connections, with the gear lever in position R:
●Connection code H66P between components 485 and 1337.
●Connection code AP11 between components 485 and 1337.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check that the gear lever cable is correctly adjusted and check the instrument panel display.
If the continuity is faulty, replace the multifunction switch.
Switch on the ignition.
With the gear lever in position R, check for + 12 V after ignition feed on the following connections:
●Connection code H66P between components 172 and 1337.
●Connection code H66P between components 173 and 1337.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
DP0TA2000_V10_ALP6/DP0TA2000_V11_ALP6/DP0TA2000_V15_ALP6