AT-86
TROUBLE DIAGNOSIS
CAN DIAGNOSTIC SUPPORT MONITOR MODE
Operation Procedure
1. PerformAT- 7 9 , "CONSULT-II SETTING PROCEDURE".
2. Touch “CAN DIAG SUPPORT MNTR”. Refer toLAN-15, "
CAN
Diagnostic Support Monitor".
DTC WORK SUPPORT MODE
Operation Procedure
1. PerformAT- 7 9 , "CONSULT-II SETTING PROCEDURE".
2. Touch “DTC WORK SUPPORT”.
START RLY MON — —
NEXT GR POSI — —
SHIFT MODE — —
MANU GR POSI — —
VEHICLE SPEED (km/h) — X Vehicle speed recognized by TCM.
Vo l ta g e (V ) — —Displays the value measured by the voltage
probe.
Frequency (Hz) — —
The value measured by the pulse probe is dis-
played. DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — —Monitored item (Unit)Monitor Item Selection
Remarks ECU
INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION
FROM
MENU
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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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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-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 P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)
AT-103
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DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)PFP:32702
DescriptionECS00FY1
Revolution sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The
pulse signal is sent to TCM which converts it into vehicle speed.
CONSULT-II Reference ValueECS00FY2
On Board Diagnosis LogicECS00FY3
Diagnostic trouble code “P0720 VEH SPD SEN/CIR AT” with CONSULT-II or 1st judgement flicker without
CONSULT-II is detected under the following conditions.
lWhen TCM does not receive the proper voltage signal from the sensor.
lAfter ignition switch is turned ON, irregular signal input from vehicle speed sensor MTR before the vehicle
starts moving.
Possible CauseECS00FY4
lHarness or connectors
(The sensor circuit is open or shorted.)
lRevolution sensor
lVehicle speed sensor MTR
DTC Confirmation ProcedureECS00FY5
CAUTION:
lAlways drive vehicle at a safe speed.
lBe careful not to rev engine into the red zone on the tachometer.
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” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Touch “START”.
4. Start engine.
5. Drive vehicle and check for an increase of “VHCL/S SE-A/T”
value in response to “VHCL/S SE-MTR” value.
If the check result is NG, go toAT- 1 0 6 , "
Diagnostic Procedure".
If the check result is OK, go to following step.
6. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
7. Drive vehicle and maintain the following conditions for at least 5
consecutive seconds.
VHCL/S SE-A/T: 30 km/h (19 MPH) or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
If the check result is NG, go toAT- 1 0 6 , "
Diagnostic Procedure".
If the check result is OK, go to following step.
8. Maintain the following conditions for at least 5 consecutive seconds.
ENGINE SPEED: 3,500 rpm or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Item name Condition Display value
VHCL/S SE-A/T During driving Approximately matches the speedometer reading.
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AT-108
DTC P0725 ENGINE SPEED SIGNAL
DTC P0725 ENGINE SPEED SIGNAL
PFP:24825
DescriptionECS00FY8
The engine speed signal is sent from ECM to TCM.
CONSULT-II Reference ValueECS00FY9
On Board Diagnosis LogicECS00FYA
Diagnostic trouble code “P0725 ENGINE SPEED SIG” with CONSULT-II or 16th judgement flicker without
CONSULT-II is detected when TCM does not receive the ignition signal from ECM during engine cranking or
running.
Possible CauseECS00FYB
Harness or connectors
(ECM to TCM circuit is open or shorted.)
DTC Confirmation ProcedureECS00FYC
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 “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
10 consecutive seconds.
VHCL/S SE-A/T: 10 km/h (6 MPH) or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
6. If DTC is detected, go toAT- 1 0 9 , "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle and maintain the following conditions for at least 10 consecutive seconds.
Vehicle speed: 10 km/h (6 MPH) or more
Accelerator opening: More than 1.0/8
Selector lever position: “D” position
3. Perform self-diagnosis. Refer toAT-89, "
Diagnostic Procedure Without CONSULT-II".
4. If DTC is detected, go toAT- 1 0 9 , "
Diagnostic Procedure".
Item name Condition Display value
ENGINE SPEED Engine running Closely matches the tachometer reading.
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AT-110
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
PFP:31940
DescriptionECS00FYE
lThe torque converter clutch solenoid valve is activated, with the gear in D5,22and 33by the TCM in
response to signals sent from the vehicle speed sensor and accelerator pedal position sensor. Torque
converter clutch piston operation will then be controlled.
lLock-up operation, however, is prohibited when A/T fluid temperature is too low.
lWhen the accelerator pedal is depressed (less than 1.0/8) in lock-up condition, the engine speed should
not change abruptly. If there is a big jump in engine speed, there is no lock-up.
CONSULT-II Reference ValueECS00FYF
On Board Diagnosis LogicECS00FYG
Diagnostic trouble code “P0740 TCC SOLENOID/CIRC” with CONSULT-II or 3rd judgement flicker without
CONSULT-II is detected under the following conditions.
lWhen TCM detects an improper voltage drop when it tries to operate the solenoid valve.
lWhen TCM detects as irregular by comparing target value with monitor value.
Possible CauseECS00FYH
lTorque converter clutch solenoid valve
lHarness or connectors
(The solenoid circuit is open or shorted.)
DTC Confirmation ProcedureECS00FYI
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 “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 5
consecutive seconds.
VHCL/S SE-A/T: 80 km/h (50 MPH) or more
ACCELE POSI: 0.5/8 - 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions required for this test.
6. If DTC is detected go toAT- 111 , "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.
Vehicle speed: 80 km/h (50 MPH) or more
Accelerator opening: 0.5/8 - 1.0/8
Selector lever position: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
3. Perform self-diagnosis. Refer toAT-89, "
Diagnostic Procedure Without CONSULT-II".
Item name Condition Display value (Approx.)
TCC SOLENOID When performing lock-up 0.4 - 0.6 A
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