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AT-90
TROUBLE DIAGNOSIS
Judgement Self-diagnosis Code
If there is a malfunction, the lamp lights up for the time corresponding to the suspect circuit.
Erase Self-diagnosis
lIn order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is
stored into the control unit as necessary during use by the user. This memory is not erased no matter how
many times the ignition switch is turned ON and OFF.
lHowever, this information is erased by turning ignition switch OFF after executing self-diagnosis or by
erasing the memory using the CONSULT-II.
No. Malfunctioning item No. Malfunctioning item
1. Revolution sensorAT- 1 0 3
10. A/T fluid temperature sensorAT- 11 8
2. Direct clutch solenoid valveAT- 1 4 2,AT-14411. Turbine revolution sensorAT- 1 2 3
3. Torque converter clutch solenoid valveAT- 11 0,AT- 11 212. A/T interlockAT-127
4. Line pressure solenoid valveAT- 11 413. A/T 1st engine brakingAT-130
5. Input clutch solenoid valveAT- 1 3 2,AT- 1 3 414. Start signalAT- 9 4
6. Front brake solenoid valveAT-137,AT- 1 3 915. Accelerator pedal position sensorAT- 11 6
7. Low coast brake solenoid valveAT- 1 5 2,AT- 1 5 416. Engine speed signalAT-108
8. High and low reverse clutch solenoid valveAT-147,AT- 1 4 917. CAN communication lineAT- 9 1
9. PNP switchAT- 9 9
SCIA6862E
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DTC U1000 CAN COMMUNICATION LINE
AT-91
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DTC U1000 CAN COMMUNICATION LINEPFP:23710
DescriptionECS00FXC
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicECS00FXD
Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-II or 17th judgement flicker without
CONSULT-II is detected when TCM cannot communicate to other control units.
Possible CauseECS00FXE
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureECS00FXF
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go toAT-93, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine and wait for at least 6 seconds.
2. Perform self-diagnosis. Refer toAT-89, "
Diagnostic Procedure Without CONSULT-II".
3. If DTC is detected, go toAT-93, "
Diagnostic Procedure".
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DTC U1000 CAN COMMUNICATION LINE
AT-93
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Data are reference value and are measured between each terminal and ground.
Diagnostic ProcedureECS00FXH
1.CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II
1. Turn ignition switch ON and start engine.
2. Select “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II.
Is any malfunction of the
“U1000 CAN COMM CIRCUIT”indicated?
YES >> Print out CONSULT-II screen, GO TO LAN section.
Refer toLAN-3, "
Precautions When Using CONSULT-II"
.
NO >>INSPECTION END
Terminal Wire color Item Condition Data (Approx.)
3 L CAN-H – –
8 P CAN-L – –
PCIA0061E
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AT-94
DTC P0615 START SIGNAL CIRCUIT
DTC P0615 START SIGNAL CIRCUIT
PFP:25230
DescriptionECS00FXI
TCM prohibits cranking other than at “P” or “N” position.
CONSULT-II Reference ValueECS00FXJ
On Board Diagnosis LogicECS00FXK
Diagnostic trouble code “P0615 STARTER RELAY/CIRC” with CONSULT-II or 14th judgement flicker without
CONSULT-II is detected when starter relay is switched ON other than at “P” or “N” position. (Or when switched
OFF at “P” or “N” position).
Possible CauseECS00FXL
lHarness or connectors
(starter relay and TCM circuit is open or shorted.)
lstarter relay
DTC Confirmation ProcedureECS00FXM
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II and check monitor “STARTER
RELAY” ON/OFF.
3. Start engine.
4. Drive vehicle for at least 2 consecutive seconds.
5. If DTC is detected, go toAT-96, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle for at least 2 consecutive seconds.
3. Perform self-diagnosis. Refer toAT-89, "
Diagnostic Procedure Without CONSULT-II".
4. If DTC is detected, go toAT-96, "
Diagnostic Procedure".
Item name Condition Display value
STARTER RELAYSelector lever in “N” or “P” position. ON
Selector lever in other positions. OFF
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AT-96
DTC P0615 START SIGNAL CIRCUIT
Data are reference value and are measured between each terminal and ground.
Diagnostic ProcedureECS00FXO
1.CHECK STARTER RELAY
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II and check monitor “STARTER
RELAY” ON/OFF.
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2.CHECK HARNESS BETWEEN A/T ASSEMBLY HARNESS CONNECTOR AND IPDM E/R CONNEC-
TOR
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector and IPDM E/R connector.
3. Check continuity between A/T assembly harness connector and
IPDM E/R connector.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Terminal Wire color Item Condition Data (Approx.)
9BRStarterrelaySelector lever in “N” or “P” position. Battery voltage
Selector lever in other positions. 0V
Item name Condition Display value
STARTER RELAYSelector lever in “N” or “P” position. ON
Selector lever in other positions. OFF
PCIA0056E
Item Connector Terminal Shift positionVoltage
(Approx.)
Starter relay E17 48 Ground“N” or “P” Battery voltage
“R”, “D”, “3”,
“2”or“1”0V
SCIA7211E
Item Connector Terminal Continuity
A/T assembly harness connector F36 9
Ye s
IPDM E/R connector E17 48
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AT-98
DTC P0700 TCM
DTC P0700 TCM
PFP:31036
DescriptionECS00FXP
TCM consists of a microcomputer and connectors for signal input and output and for power supply. TCM con-
trols A/T.
On Board Diagnosis LogicECS00FXQ
Diagnostic trouble code “P0700 TCM” with CONSULT-II is detected when TCM is malfunctioning.
Possible CauseECS00FXR
TCM
DTC Confirmation ProcedureECS00FXS
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA
MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine.
4. Run engine for at least 2 consecutive seconds at idle speed.
5. If DTC is detected, go toAT-98, "
Diagnostic Procedure".
Diagnostic ProcedureECS00FXT
1.CHECK DTC
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF DIAG RESULTS” mode for “A/T” with CONSULT-II.
3. Touch “ERASE”.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. PerformAT- 9 8 , "
DTC Confirmation Procedure".
Is the
“P0700 TCM”displayed again?
YES >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NO >>INSPECTION END
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DTC P0705 PARK/NEUTRAL POSITION SWITCH
AT-99
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DTC P0705 PARK/NEUTRAL POSITION SWITCHPFP:32006
DescriptionECS00FXU
lPNP switch includes a transmission range switch.
lThe transmission range switch detects the selector lever position and sends a signal to TCM.
CONSULT-II Reference ValueECS00FXV
On Board Diagnosis LogicECS00FXW
Diagnostic trouble code “P0705 PNP SW/CIRC” with CONSULT-II or 9th judgement flicker without CONSULT-
II is detected under the following conditions.
lWhen TCM does not receive the correct voltage signal from PNP switches 1, 2, 3 and 4 based on the gear
position.
lWhen no other positions but “P” position is detected from “N” position.
Possible CauseECS00FXX
lHarness or connectors
PNP switches 1, 2, 3 and 4 and TCM circuit is open or shorted.
lPNPswitches1,2,3and4
DTC Confirmation ProcedureECS00FXY
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA
MONITOR” mode for “A/T” with CONSULT-II.
3. Touch “START”.
4. Start engine.
5. Drive vehicle and maintain the following conditions for at least 2
consecutive seconds.
ACCELE POSI: More than 1.0/8
6. If DTC is detected, go toAT- 1 0 1 , "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.
Accelerator opening: More than 1.0/8
3. Perform self-diagnosis. Refer toAT-89, "
Diagnostic Procedure Without CONSULT-II".
4. If DTC is detected, go toAT- 1 0 1 , "
Diagnostic Procedure".
Item name Condition Display value
SLCTLVR POSISelector lever in “N” or “P” position. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
Selector lever in “3” position. 3
Selector lever in “2” position. 2
Selector lever in “1” position. 1
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DTC P0705 PARK/NEUTRAL POSITION SWITCH
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Diagnostic ProcedureECS00FY0
1.CHECK PNP SW CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II.
3. Check if correct selector lever position (N/P, R, D, 3, 2 or 1) is
displayed as selector lever is moved into each position.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
Item name Condition Display value
SLCTLVR POSISelector lever in “N” or “P” position. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
Selector lever in “3” position. 3
Selector lever in “2” position. 2
Selector lever in “1” position. 1
SCIA5296E