TROUBLE DIAGNOSIS
CVT-53
< SERVICE INFORMATION >
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ENG SPEED (rpm) — X
SLIP REV (rpm) — XDifference between engine speed and primary
pulley speed
GEAR RATIO — X
G SPEED (G) — —
ACC PEDAL OPEN (0.0/8) X XDegree of opening for accelerator recognized by
the TCM
For fail-safe operation, the specific value used for
control is displayed.
TRQ RTO — —
SEC PRESS (MPa) — X
PRI PRESS (MPa) — X
ATFTEMP COUNT — XMeans CVT fluid temperature. Actual oil temper-
ature (°C) cannot be checked unless a numeric
value is converted. Refer to CVT-8
.
DSR REV (rpm) — —
DGEAR RATIO — —
DSTM STEP (step) — —
STM STEP (step) — X
LU PRS (MPa) — —
LINE PRS (MPa) — —
TGT SEC PRESS (MPa) — —
ISOLT1 (A) — XTorque converter clutch solenoid valve output
current
ISOLT2 (A) — XPressure control solenoid valve A (line pressure
solenoid valve) output current
ISOLT3 (A) — XPressure control solenoid valve B (secondary
pressure solenoid valve) output current
SOLMON1 (A) X XTorque converter clutch solenoid valve monitor
current
SOLMON2 (A) X XPressure control solenoid valve A (line pressure
solenoid valve) monitor current
SOLMON3 (A) X XPressure control solenoid valve B (secondary
pressure solenoid valve) monitor current
INH SW3M (ON/OFF) X — PNP switch 3 ON-OFF status monitor
INH SW4 (ON/OFF) X — PNP switch 4 ON-OFF status
INH SW3 (ON/OFF) X — PNP switch 3 ON-OFF status
INH SW2 (ON/OFF) X — PNP switch 2 ON-OFF status
INH SW1 (ON/OFF) X — PNP switch 1 ON-OFF status
BRAKE SW (ON/OFF) X XStop lamp switch (Signal input with CAN comuni-
cation) Monitored item (Unit)Monitor item selection
Remarks ECU IN-
PUT SIG-
NALSMAIN SIG-
NALSSELEC-
TION
FROM
MENU
CVT-58
< SERVICE INFORMATION >
DTC U1000 CAN COMMUNICATION LINE
Diagnosis Procedure
INFOID:0000000001703470
1.CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-III1. Turn ignition switch ON and start engine.
2. Select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-III.
Is any malfunction of the
“U1000 CAN COMM CIRCUIT” indicated?
YES >> Print out CONSULT-III screen, go to LAN section. Refer to LAN-23, "CAN System Specification
Chart" .
NO >>INSPECTION END
DTC U1010 TRANSMISSION CONTROL MODULE (CAN)
CVT-59
< SERVICE INFORMATION >
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DTC U1010 TRANSMISSION CONTROL MODULE (CAN)
DescriptionINFOID:0000000001703471
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 LogicINFOID:0000000001703472
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “U1010 CONTROL UNIT(CAN)” with CONSULT-III is detected when TCM cannot
communicate to other control units.
Possible CauseINFOID:0000000001703473
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001703474
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, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go to CVT-59, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000001703475
1.CHECK DTC
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-III.
3. Touch “ERASE”.
4. Turn ignition switch OFF and wait for at least 10 seconds.
5. Perform “DTC confirmation procedure”. Refer to CVT-59, "
DTC Confirmation Procedure".
Is any malfunction of the
“U1010 CONTROL UNIT(CAN)” indicated?
YES >> Replace the TCM. Refer to CVT-161, "Removal and Installation".
NO >>INSPECTION END
CVT-62
< SERVICE INFORMATION >
DTC P0615 START SIGNAL CIRCUIT
Diagnosis Procedure
INFOID:0000000001703482
1.CHECK STARTER RELAY SIGNAL
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “STRTR RLY OUT”, “STRTR RLY MON”(PNP relay) ON/OFF.
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between the TCM connector terminal and
ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.DETECT MALFUNCTIONING ITEM
Check the following:
• Starter relay. Refer to PG-69
.
• Open or short-circuit in the harness between TCM and the starter relay. Refer to CVT-61, "
Wiring Diagram -
CVT - STSIG" .
• Ground circuit for the starter relay. Refer to SC-10, "
Wiring Diagram - START -" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.CHECK DTC
Perform CVT-60, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 4.
4.CHECK TCM
1. Check TCM input/output signals. Refer to CVT-45, "
TCM Terminal and Reference Value" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Item name Condition Display value
STRTR RLY OUTSelector lever in “P” and
“N” positionsON
Selector lever in other po-
sitionsOFF
STRTR RLY MONSelector lever in “P” and
“N” positionsON
Selector lever in other po-
sitionsOFF
Terminal Item Condition Data (Approx.)
24Sta r te r
relaySelector lever in “N” and “P”
positionsBattery voltage
Selector lever in other posi-
tions0 V
SCIA2022E
DTC P0703 STOP LAMP SWITCH CIRCUIT
CVT-63
< SERVICE INFORMATION >
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DTC P0703 STOP LAMP SWITCH CIRCUIT
DescriptionINFOID:0000000001703483
ON, OFF status of the stop lamp switch is sent via the CAN communication from the combination meter to
TCM using the signal.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001703484
On Board Diagnosis LogicINFOID:0000000001703485
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0703 BRAKE SW/CIRC” with CONSULT-III is detected when the stop lamp switch
does not switch to ON and OFF.
- The stop lamp switch does not switch to ON, OFF.
Possible CauseINFOID:0000000001703486
• Harness or connectors
(Stop lamp switch, and combination meter circuit are open or shorted.)
(CAN communication line is open or shorted.)
• Stop lamp switch
DTC Confirmation ProcedureINFOID:0000000001703487
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, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start engine.
4. Start vehicle for at least 3 consecutive seconds.
5. If DTC is detected, go to CVT-63, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001703488
1.CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis check. Refer to CVT-47, "
CONSULT-III Function (TRANSMISSION)".
Is any malfunction of the
“U1000 CAN COMM CIRCUIT” indicated?
YES >> Check CAN communication line. Refer to CVT-56.
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out ON/OFF switching action of the “BRAKE SW”.
Item name Condition Display value
BRAKE SWDepressed brake pedal ON
Released brake pedal OFF
CVT-68
< SERVICE INFORMATION >
DTC P0705 PARK/NEUTRAL POSITION SWITCH
Diagnosis Procedure
INFOID:0000000001703495
1. CHECK PNP SW SIGNALS
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Change selector lever to “P”, “R”, “N”, “D” and “L” positions to check the value of “INH SW1”“INH SW2”
“INH SW3”“INH SW4” and “INH SW3M”.
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Change selector lever to “P“, “R”, “N”, “D” and “L” positions to
check voltage between the TCM connector terminals and
ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK PNP SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
Shift
posi-
tion“INH SW1” “INH SW2” “INH SW3” “INH SW4” “INH SW3M”
P OFF OFF OFF OFF OFF
R ON OFF OFF ON OFF
N ON ON OFF OFF OFF
DON ON ON ON ON
L OFF ON ON OFF ON
Shift po-
sitionConnector E32
Te r m i n a l
27 - Ground 34 - Ground 35 - Ground 36 - Ground32 -
Ground
PBattery volt-
age10.0 V - Bat-
tery voltage8.0 V - Bat-
tery voltage10.0 V - Bat-
tery voltage8.0 V - Bat-
tery volt-
age
R0 V10.0 V - Bat-
tery voltage8.0 V - Bat-
tery voltage0 V8.0 V - Bat-
tery volt-
age
N0 V 0 V8.0 V - Bat-
tery voltage10.0 V - Bat-
tery voltage8.0 V - Bat-
tery volt-
age
D 0 V 0 V 0 V 0 V 0 V
LBattery volt-
age0 V 0 V10.0 V - Bat-
tery voltage0 V
SCIA2024E
DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT
CVT-73
< SERVICE INFORMATION >
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Diagnosis ProcedureINFOID:0000000001703503
1. CHECK CVT FLUID TEMPERATURE SENSOR SIGNAL
With CONSULT-III
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “ATF TEMP SEN”.
Without CONSULT-III
1. Start engine.
2. Check voltage between TCM connector terminals.
3. Turn ignition switch OFF.
4. Disconnect TCM connector.
5. Check if there is continuity between connector terminal and
ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK CVT FLUID TEMPERATURE SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminals.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK CVT FLUID TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
Item name ConditionDisplay value
(Approx.)
ATF TEMP SENWhen CVT fluid temperature is 20°C
(68°F).2.0 V
When CVT fluid temperature is 80°C
(176°F).1.0 V
Name Connector TerminalTemperature
°C (°F)Voltage
(Approx.)
CVT fluid tem-
perature sen-
sorE32 47 - 4220 (68) 2.0 V
80 (176) 1.0 V
SCIA2027E
Name Connector TerminalTemperature
°C (°F)Resistance
(Approx.)
CVT fluid tem-
perature sensorE32 47 - 4220 (68) 6.5 kΩ
80 (176) 0.9 kΩ
SCIA2510E
CVT-78
< SERVICE INFORMATION >
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
Diagnosis Procedure
INFOID:0000000001703511
1.CHECK INPUT SIGNALS
With CONSULT-III
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start vehicle and read out the value of “PRI SPEED SEN”.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2.CHECK INPUT SPEED SENSOR (PRIMARY SPEED SENSOR)
1. Start engine.
2. Check voltage between TCM connector terminals.
3. Check the pulse with CONSULT-III or oscilloscope, when vehi-
cle cruises.
OK or NG
OK >> GO TO 6.
NG - 1 >> Battery voltage is not supplied: GO TO 3.
NG - 2 >> Battery voltage is supplied, but there is a malfunction in
the frequency: GO TO 4.
3. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER AND
SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
Item name Condition Display value
PRI SPEED SENDuring driving (lock-up
ON)Approximately matches
the engine speed.
Item Connector Terminal Data (Approx.)
TCM E32 46 - 42 5.0 V
Name Condition
Input speed sensor
(Primary speed
sensor)When running at 20 km/h (12 MPH) in “L” position with the
closed throttle position signal OFF, use the CONSULT-III
pulse frequency measuring function.
CAUTION:
Connect the data link connector to the vehicle-side diag-
nosis connector.
Item Connector Terminal NameData (Ap-
prox.)
TCM E32 38Input speed sensor (Primary
speed sensor)1000 Hz
SCIA1915E