Page 111 of 162

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 111V3 MR-372-J84-23A000$495.mif
AJ0 BVA
Vdiag No.: 04, 05
DF307
CONTINUED 5
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 there, contact the Techline.
If NO, move on to step 4.
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.
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.
Page 112 of 162

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 112V3 MR-372-J84-23A000$495.mif
AJ0 BVA
Vdiag No.: 04, 05
DF307
CONTINUED 6
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.
Step 7:
Measure the continuity and insulation of the following connections:
●Connection code 5BF.
●Connection code 5LW.
Between lock-up/brake 1 solenoid valve 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 the 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.
Page 119 of 162

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of statuses
23A
23A - 119V3 MR-372-J84-23A000$675.mif
AJ0 BVA
Vdiag No.: 04, 05
ET013
CONTINUED 1
R
SIGNAL
P/N
*EVS2: sequence solenoid valve 2Check (engine stopped, ignition on and brake pedal depressed), lever in position "R",
ET013 "Gear engaged" = "R".
In the event of a fault, consult the interpretation of faults DF067 "Lever position switch
circuit" , DF304 "Brake 1 pressure switch circuit" and DF306 "lock-up/brake 1
solenoid valve circuit".
If the fault is still present, contact Techline.
In the event of a fault, consult the interpretation of fault DF298 Gear shifts.
Check (engine stopped, ignition on and brake pedal depressed), lever in position "P" or
"N", ET013 "Gear engaged" = "P" or "N".
In the event of a fault, consult the interpretation of faults DF067 " Lever position switch
circuit" and DF086 "EVS2 shift solenoid circuit".
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 120 of 162

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of statuses
23A
23A - 120V3 MR-372-J84-23A000$675.mif
AJ0 BVA
Vdiag No.: 04, 05
ET013
CONTINUED 2
Conformity check with the engine running.
1
2
3
DISENGAGE
(clutch
disengagement)
4
5
6
R
Check (engine running and brake pedal depressed), lever in position "M", ET013 "Gear
engaged" = "1", "2", "3".
In the event of a fault, consult the interpretation of faults DF067 Lever position switch
circuit and DF301 Clutch 1 pressure switch circuit.
If the fault is still present, contact Techline.
Check (engine running at idle speed and brake pedal depressed), status
ET261 "Clutch 1" lever in "D" position:
ET013 "Gear engaged" = "1" →→ → →
status ET261 "Clutch 1" is "Active"; if status ET013
"Gear engaged" is "Disengaged" (clutch disengaged when stationary) → ET261
"Clutch 1" is "Inactive".
In the event of a fault, consult the interpretation of fault DF067 Lever position switch
circuit.
If the fault is still present, contact Techline.
These statuses only arise during the road test, with the lever in position "D" or "M",
ET013 "Gear engaged" = "4", "5", "6".
IMPORTANT
It is essential to have 2 people to perform these checks during a road test.
In the event of a fault, consult the interpretation of faults DF067 Lever position switch
circuit" and DF303 "Clutch 3 pressure switch circuit".
If the fault is still present, contact Techline.
Check (engine running and brake depressed), lever in position "R", ET013 "Gear
engaged" = "R".
In the event of a fault, consult the interpretation of faults DF067 Lever position switch
circuit, DF304 Brake 1 pressure switch circuit and DF306 lock-up/brake 1 solenoid
valve circuit.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 123 of 162

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of statuses
23A
23A - 123V3 MR-372-J84-23A000$675.mif
AJ0 BVA
Vdiag No.: 04, 05
ET071
TORQUE CONVERTER
Note:
Status ET071 "Torque converter" is applicable to the following sub-function:
–"Gear changes".
STATUS
DEFINITIONOPEN: shows that the torque converter is not locked up.
SLIPPING: shows that the torque converter is in a phase between open → lock-up or
in a phase between lock-up → open.
CLOSED: shows that the torque converter is locked up.
INVALID: shows that the torque converter is faulty.
NOTESSpecial notes:
Apply the conformity check to see if the statuses are consistent with the operating
programs of the system.
Note:
In manual mode, the torque converter is always locked up.
Conformity check with engine stopped and ignition on.
OPEN
Engine stopped, in position "N", status ET071 "Torque converter" must be "OPEN".
In the event of a fault, consult the interpretation of fault DF097 "Torque converter
lock-up".
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_ET071/AJ0_V05_ET071
Page 124 of 162
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of statuses
23A
23A - 124V3 MR-372-J84-23A000$675.mif
AJ0 BVA
Vdiag No.: 04, 05
ET071
CONTINUED
Conformity check with engine running.
OPEN
SLIPPING
CLOSED
SIGNAL
In the event of a fault, consult the interpretation of fault DF097 "Torque converter
lock-up".
This status involves slip action when changing gear during a road test.
IMPORTANT
It is essential to have 2 people to perform these checks during a road test.
In the event of a fault, consult the interpretation of fault DF097 "Torque converter
lock-up".
Check (engine running at idle speed and brake pedal depressed), lever in position "R",
ET013 "Gear engaged" = "R" or lever in position "M", ET013 "Gear engaged" = "1",
"2", "3".
In the event of a fault, consult the interpretation of fault DF097 "Torque converter
lock-up".
Check the interpretation of fault DF097 "Converter lock-up".
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 129 of 162

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of statuses
23A
23A - 129V3 MR-372-J84-23A000$675.mif
AJ0 BVA
Vdiag No.: 04, 05
ET259
BRAKE 1
Note:
Status ET259 "Brake 1" is applicable to the following sub-function:
–"Gear changes".
STATUS
DEFINITIONACTIVE: shows that brake 1 is active.
INACTIVE: shows that brake 1 is inactive.
NOTESSpecial notes:
With the engine running, check that status ET259 "Brake 1" is Active,
gear engaged "R".
Conformity check with the engine running.
ACTIVE
INACTIVE
Check (engine running at idle speed and brake pedal depressed), lever in position "R",
ET013 "Gear engaged" = "R" or lever in position "M", ET013 "Gear engaged" = "1".
In the event of a fault, consult the interpretation of faults DF304 Brake 1 pressure
switch circuit and DF306 lock-up/brake 1 solenoid valve circuit.
If the fault is still present, contact Techline.
Status ET259 "Brake 1" must be "INACTIVE" on all other gear ratios except:
–Lever in position "R", status ET013 "Gear engaged" = "R".
–Lever in position "M", status ET013 "Gear engaged" = "1".
In the event of a fault, consult the interpretation of faults DF304 Brake 1 pressure
switch circuit and DF306 lock-up/brake 1 solenoid valve circuit.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_ET259/AJ0_V05_ET259
Page 145 of 162
AUTOMATIC TRANSMISSION
23A
23A - 145V3 MR-372-J84-23A000$810.mif
AJ0 BVA
Vdiag No.: 04, 05AUTOMATIC TRANSMISSION
Fault finding - Command summary table
*LS pressure: line pressure.Tool command Diagnostic tool title
AC002Shift solenoid 1
AC003Shift solenoid 2
AC026Clutch 1 solenoid valve
AC029Clutch 2 solenoid valve
AC030Clutch 3 solenoid valve
AC031Brake 1 solenoid valve
AC032Brake 2 solenoid valve
AC086"LS" pressure regulation solenoid valve
AC088Gear lever locking electromagnet
RZ001Stored fault(s)
MR-372-J84-23A000$810.mif