AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 51V3 MR-372-J84-23A000$405.mif
AJ0 BVA
Vdiag No.: 04, 05
*EVS2 = sequence solenoid valve 2DF097
PRESENT
OR
STORED
CONVERTER lock-up
1.DEF: CONVERTER LOCK-UP CONTROL
NOTESOrder of priority in the event of more than one fault:
If there is a combination of the following faults:
–DF097 "Converter lock-up",
–DF086 "Sequence solenoid valve circuit "EVS2*""
–DF306 "Lock-up/brake 1 solenoid valve circuit",
deal first with faults DF086 "Sequence solenoid valve "EVS2*"" and DF306 "Lock-
up/brake 1 solenoid valve circuit".
Conditions for applying fault finding procedures to stored faults:
The fault is declared present after:
If in lock-up:
Lever in Manual position,
and difference in *slippage speed ≥ 40 + Vehicle speed / 2 for a certain time,
and EVS2* solenoid valve control status > 95 %.
In the event of slippage:
Lever in Manual position,
and difference in slippage speed ≥ 40 + slippage speed setpoint for a certain time,
and EVS2* solenoid valve control status > 95 %.
*slippage = engine speed - turbine speed
Effect on system:
Increase in oil temperature.
–In the event of engagement fault, lock-up inhibited.
–In the event of slippage fault, lock-up slippage inhibited.
Customer complaint:
Warning light on.
Use the Wiring Diagrams Technical Note, SCENIC II ph2.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.
AJ0_V04_DF097/AJ0_V05_DF097
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 54V3 MR-372-J84-23A000$405.mif
AJ0 BVA
Vdiag No.: 04, 05
Fault finding on lock-up/brake solenoid valve 1: DF097
CONTINUED 3
Stage 6:
Disconnect the connector from sequence solenoid valve 2, measure the resistance of sequence solenoid
valve 2 between the following connections:
●Connection code 5CY.
●Connection code 5LW.
The resistance must be 28 ΩΩ Ω Ω
± 2.8 ΩΩ Ω Ω
at 20 ˚C.
Is the resistance correct?
If YES, move on to step 7.
If NOT, replace the hydraulic distributor.
Step 7:
Measure the continuity and insulation of the following connections:
●Connection code 5CY.
●Connection code 5LW.
Between sequence solenoid valve 2 and the internal connector on the transmission.
Are the continuity and insulation correct?
If YES, contact the Techline.
If NO, replace the internal wiring harness on the automatic transmission.
Step 8:
Check the continuity and insulation of the following connection:
●Connection code 5LW between components 119 and 754.
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.
If + after ignition feed is not present after checking feeds and computer earths on the transmission, contact the
Techline.
Look for any damage to the harness and check the condition and connection of the automatic transmission
computer and on the automatic transmission connectors.
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 for + after ignition feed on connection 5LW of component 754.
If + after ignition feed is present, move on to step 1.
If + after ignition feed is not present, move on to step 8.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 55V3 MR-372-J84-23A000$405.mif
AJ0 BVA
Vdiag No.: 04, 05
DF097
CONTINUED 4
Step 1:
Disconnect the connector from component 119, measure the resistance of the lock-up/brake solenoid valve
(on the connector of component 119) between the following connections:
●Connection code 5BF.
●Connection code 5LW.
The resistance must be 5.3 ΩΩ Ω Ω
± 0.5 ΩΩ Ω Ω
at 20 ˚C.
Is the resistance correct?
If YES, contact the Techline.
If NO, move on to step 2.
Step 2:
Disconnect connector R22 and check continuity and insulation of the following connections:
●Connection code 5BF.
●Connection code 5LW.
Between components 119 and R22.
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.
Are the continuity and insulation correct?
If YES, move on to step 3.
If NO, replace the external wiring harness on the automatic transmission.
Stage 3:
Measure the resistance of lock-up/brake 1 solenoid valve (on connector R22) between the following
connections:
●Connection code 5BF.
●Connection code 5LW.
The resistance must be 5.3 ΩΩ Ω Ω
± 0.5 ΩΩ Ω Ω
at 20 ˚C.
Is the resistance correct?
If YES, and if the fault is still present, contact the Techline.
If NO, move on to step 4.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 56V3 MR-372-J84-23A000$405.mif
AJ0 BVA
Vdiag No.: 04, 05
DF097
CONTINUED 5
Stage 4:
Drain the automatic transmission (see, MR 370, Mechanical, 23A Automatic transmission, Oil change) and
remove the transmission housing (see, MR 370, Mechanical, 23A Automatic transmission, Hydraulic
distributor).
Disconnect the connector from component 754, measure the resistance of lock-up/brake 1 solenoid valve
(on the connector of the internal wiring harness of the transmission) between the following connections:
●Connection code 5BF.
●Connection code 5LW.
The resistance must be 5.3 ΩΩ Ω Ω
± 0.5 ΩΩ Ω Ω
at 20 ˚C.
Is the resistance correct?
If YES, move on to step 5.
If NO, move on to step 6.
Stage 5:
Measure the continuity and insulation of the following connections:
●Connection code 5BF.
●Connection code 5LW.
Between components R22 and the internal connector in the transmission.
Are the continuity and insulation correct?
If YES, contact the Techline.
If NO, replace the intermediate wiring harness between connector R22 and the internal connector in the
transmission.
Stage 6:
Disconnect the connector from lock-up/brake 1 solenoid valve, measure the resistance of lock-up/brake 1
solenoid valve between the following connections:
●Connection code 5BF.
●Connection code 5LW.
The resistance must be 5.3 ΩΩ Ω Ω
± 0.5 ΩΩ Ω Ω
at 20 ˚C.
Is the resistance correct?
If YES, move on to step 7.
If NO, replace the hydraulic distributor.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 57V3 MR-372-J84-23A000$405.mif
AJ0 BVA
Vdiag No.: 04, 05
DF097
CONTINUED 6
Step 7:
Measure the continuity and insulation of the following connections:
●Connection code 5BF.
●Connection code 5LW.
Between lock-up/brake solenoid valve 1 and the internal connector on the transmission.
Are the continuity and insulation correct?
If YES, contact the Techline.
If NO, replace the internal wiring harness on the automatic transmission.
Step 8:
Check the continuity and insulation of the following connection:
●Connection code 5LW between components 119 and 754.
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.
If + after ignition feed is not present after checking feeds and earths on the transmission computer, contact the
Techline.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 67V3 MR-372-J84-23A000$450.mif
AJ0 BVA
Vdiag No.: 04, 05
DF256
PRESENT
OR
STOREDERRATIC GEAR JUMPING
1.DEF: Hydraulic, mechanical or electrical fault on solenoid valves, deal with the
other faults first
NOTESConditions for applying fault finding procedures to stored faults:
The fault appears after:
1st case: when driving, in Drive or in Manual
ratio > ratio setpoint,
and output speed ≥ 300 rpm,
and turbine speed ≥ 300 rpm,
and engine speed ≥ turbine speed - 50 rpm,
and (if 1st with engine braking, accelerator pedal ≥ 6.25 % OR,
if 1st, accelerator pedal ≥ 30.75 % OR,
if 2nd to 6th accelerator pedal ≥ 6.25 %).
2nd case: while driving, reverse gear
ratio > ratio setpoint,
and output speed ≥ 300 rpm,
and turbine speed ≥ 300 rpm,
and engine speed ≥ turbine speed - 50 rpm,
and accelerator pedal ≥ 6.25 %.
3rd case: stationary, in Drive or in Manual
Difference between engine speed and mapping > threshold,
and engine speed increases constantly for 250 ms.
4th case: stationary, reverse gear
Difference between engine speed and mapping > 0,
and engine speed increases constantly for 250 ms.
System effects:
No engine torque transmitted to wheels.
Switch to defect mode occurs during vehicle speed safety conditions (vehicle speed
< 32 mph (54 km/h)).
The system effects will vary depending on which solenoid valve is faulty:
–If caused by brake 2 solenoid valve, system switches to fixed 2nd, 3rd or 5th gear
safe mode.
–If caused by clutch 2 solenoid valve, system switches to fixed 2nd, 3rd or 6th gear
safe mode.
–If caused by the clutch 3 solenoid valve, system switches to fixed 2nd, 3rd, 4th or 5th
gear safe mode.
–If caused by clutch 1 solenoid valve, system switches to fixed 3rd, 5th or 6th gear
safe mode.
In all cases, restarting is in 3rd gear.
If vehicle stopped in Drive, system switches to fixed 5th gear if engine speed is lower
than 2000 rpm.
If vehicle stopped in "R" mode, switching to "R" mode is done if engine speed is less
than 2000 rpm.
In reverse, moving off when "kick-down" detected.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.
AJ0_V04_DF256/AJ0_V05_DF256
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 68V3 MR-372-J84-23A000$450.mif
AJ0 BVA
Vdiag No.: 04, 05
DF256
CONTINUED 1
Note:
To accurately locate components (see location of components).
NOTESCustomer complaint:
Switch to safe mode:
–If caused by brake 2 solenoid valve, system switches to fixed 2nd, 3rd or 5th gear
safe mode.
–If caused by clutch 2 solenoid valve, system switches to fixed 2nd, 3rd or 6th gear
safe mode.
–If caused by the clutch 3 solenoid valve, system switches to fixed 2nd, 3rd, 4th or 5th
gear safe mode.
–If caused by clutch 1 solenoid valve, system switches to fixed 3rd, 5th or 6th gear
safe mode.
In all cases, restarting is in 3rd gear.
If vehicle stopped in Drive, system switches to fixed 5th gear if engine speed is lower
than 2000 rpm.
If vehicle stopped in R, switch to R if engine speed is lower than 2000 rpm.
Fault warning light comes on.
Note:
If at least one solenoid valve is faulty, replace the hydraulic distributor.
Look for any damage to the wiring and check the condition and connection of the connectors for components 119
and 754.
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.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 69V3 MR-372-J84-23A000$450.mif
AJ0 BVA
Vdiag No.: 04, 05
DF256
CONTINUED 2
Disconnect the connector from component 119, measure the resistance of clutch 1 solenoid valve
(on the connector of component 119) between the following connections:
●Connection code 5DL.
●Connection code 5LW.
The resistance must be 5.3 ΩΩ Ω Ω
± 0.5 ΩΩ Ω Ω
at 20 ˚C.
If the resistance is not correct, check interpretation of fault DF273 "Clutch solenoid valve 1 circuit".
Disconnect the connector from component 119, measure the resistance of clutch 2 solenoid valve
(on the connector of component 119) between the following connections:
●Connection code 5DM.
●Connection code 5LW.
The resistance must be 5.3 ΩΩ Ω Ω
± 0.5 ΩΩ Ω Ω
at 20 ˚C.
If the resistance is not correct, check interpretation of fault DF274 "Clutch solenoid valve 2 circuit".
Disconnect the connector from component 119, measure the resistance of clutch 3 solenoid valve
(on the connector of component 119) between the following connections:
●Connection code 5Q.
●Connection code 5LW.
The resistance must be 5.3 ΩΩ Ω Ω
± 0.5 ΩΩ Ω Ω
at 20 ˚C.
If the resistance is not correct, check interpretation of fault DF275 "Clutch solenoid valve 3 circuit".
Disconnect the connector from component 119, measure the resistance of the lock-up/brake solenoid valve
(on the connector of component 119) between the following connections:
●Connection code 5BF.
●Connection code 5LW.
The resistance must be 5.3 ΩΩ Ω Ω
± 0.5 ΩΩ Ω Ω
at 20 ˚C.
If the resistance is not correct, check interpretation of fault DF306 "Lock-up/brake solenoid valve 1 circuit".
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.