Page 209 of 2771

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-197
< SERVICE INFORMATION >
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- Shift valve A
- Shift solenoid valve A
- Overrun clutch control valve
- Overrun clutch solenoid valve
3. Disassemble A/T. Refer to AT-240, "
Disassembly" .
4. Check the following items:
- Servo piston assembly
- Brake band
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK SYMPTOM
Check again. Refer to AT-59, "
Cruise Test - Part 3" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
8.CHECK TCM
1. Check TCM input/output signals. Refer to AT-71, "
TCM Terminal and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Does Not Decelerate by Engine BrakeINFOID:0000000001703353
SYMPTOM:
•Vehicle does not decelerate by engine brake when shifting from 22 (12 ) to 11“Cruise Test — Part 3”.
•Vehicle does not decelerate by engine brake when OD OFF (OD OFF indicator lamp is on) on “Cruise
Test — Part 3”.
•Vehicle does not decelerate by engine brake when shifting A/T from “D” to “2” position on “Cruise
Test — Part 3”.
DIAGNOSTIC PROCEDURE
1.CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to AT-73, "
CONSULT-III Function (A/T)" or AT-78, "Diagnosis Procedure without
CONSULT-III" .
Is a malfunction in CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 8 3 .
NO >> GO TO 2.
2.CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-III.
3. Read out “OVERDRIVE SW”.
Check the signal of the overdrive control switch is indicated properly.
SAT778B
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AT-198
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine)
2. Check voltage between A/T device harness connector terminal
and ground. Refer to AT-173, "
Wiring Diagram - AT - NONDTC" .
OK or NG
OK (With CONSULT-III)>>GO TO 3.
OK (Without CONSULT-III)>>GO TO 4.
NG >> Check overdrive control switch. Refer to AT-171, "
Component Inspection" .
3.CHECK PNP SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-III.
3. Read out “P·N”, “R”, “D”, “2” and “1” position switches moving selector lever to each position.
OK or NG
OK >> GO TO 5
NG >> Check PNP switch. Refer to AT-171, "
Component Inspection" .
4.CHECK PNP SWITCH CIRCUIT
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
Item nameOverdrive control switch
ConditionDisplay value
OVERDRIVE SWDepressed ON
Released OFF
Item Connector TerminalOverdrive
control switch
ConditionJudge-
ment
standard
(Approx.)
A/T device harness
connector (Overdrive
control switch)M38 1 - GroundReleasedBattery
voltage
Depressed 0V
SCIA5336E
Monitor item Condition Display value
PN POSI SWWhen setting selector lever to “N” or “P” posi-
tion.ON
When setting selector lever to other positions. OFF
R POSITION SWWhen setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SWWhen setting selector lever to “D” positions. ON
When setting selector lever to other positions. OFF
2 POSITION SWWhen setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SWWhen setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF
Page 211 of 2771

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-199
< SERVICE INFORMATION >
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2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position. Refer to AT-
87, "Wiring Diagram - AT - PNP/SW" .
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 5
NG >> Check PNP switch. Refer to AT-171, "
Component Inspection" .
5.CHECK A/T POSITION
Check A/T position. Refer to AT-207, "
Checking of A/T Position" .
OK or NG
OK >> GO TO 6.
NG >> Adjust A/T position. Refer to AT-207, "
Adjustment of A/T Position" .
6.CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to AT- 9 6
and/or AT-149 .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and/or vehicle speed sensor·MTR
circuits.
7.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-493
.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace accelerator pedal position sensor.
8.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-230, "
Component" .
2. Check A/T fluid condition. Refer to AT-48, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following.
Selector lever positionTe r m i n a l
36 35 34 27 26
“P”, “N” B 0 0 0 0
“R” 0B000
“D” 0 0 B 0 0
“2” 0 0 0 B 0
“1” 0 0 0 0 B
SCIA7162E
Page 212 of 2771

AT-200
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
- Shift valve A
- Overrun clutch solenoid valve
3. Disassemble A/T. Refer to AT-240, "
Disassembly" .
4. Check the following.
- Overrun clutch assembly. Refer to AT-288, "
Forward and Overrun Clutches" .
- Low & reverse brake assembly. Refer to AT-295, "
Low & Reverse Brake" .
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10.CHECK SYMPTOM
Check again. Refer to AT-59, "
Cruise Test - Part 3" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 11.
11 .CHECK TCM
1. Check TCM input/output signals. Refer to AT-71, "
TCM Terminal and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
TCM Self-Diagnosis Does Not ActivateINFOID:0000000001703354
SYMPTOM:
OD OFF indicator lamp does not come on in TCM self-diagnostic procedure even if the lamp circuit is
good.
DESCRIPTION
• PNP switch
PNP switch assembly includes a transaxle position switch. The
transaxle position switch detects the selector lever position and
sends a signal to the TCM.
• Overdrive control switch
Overdrive control switch detects the switch position (ON or OFF)
and sends the signal via CAN communication to the TCM.
SCIA7141E
SCIA7142E
Page 213 of 2771
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-201
< SERVICE INFORMATION >
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• Closed throttle position signal and wide open throttle position sig-
nal
ECM judges throttle opening based on a signal from accelerator
pedal position sensor, and sends the signal via CAN communica-
tion to the TCM.
DIAGNOSTIC PROCEDURE
NOTE:
The diagnostic procedure includes inspection for the PNP stitch, overdrive control switch, closed throttle posi-
tion signal and wide open throttle position signal circuit. Refer to AT-167
.
SCIA7143E
Page 214 of 2771
AT-202
< SERVICE INFORMATION >
TRANSMISSION CONTROL MODULE
TRANSMISSION CONTROL MODULE
Removal and InstallationINFOID:0000000001703355
COMPONENTS
REMOVAL
1. Disconnect the battery negative terminal.
2. Disconnect TCM harness connectors (1) from TCM (2).
• Instrument lower finisher (3)
3. Remove TCM (2).
INSTALLATION
Installation is in the reverse order of removal.
1. TCM
SCIA6963E
SCIA7167E
Page 215 of 2771
SHIFT CONTROL SYSTEM
AT-203
< SERVICE INFORMATION >
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SHIFT CONTROL SYSTEM
Control Device Removal and InstallationINFOID:0000000001703356
CONTROL DEVICE COMPONENTS
CONTROL CABLE COMPONENTS
1. Selector lever knob 2. Knob cover 3. Lock pin
4. Overdrive control switch 5. Knob finisher 6. Selector button
7. Selector button return spring 8. Position indicator plate 9. Position lamp
10. Dust cover 11. Bracket 12. Shift lock solenoid and park position
switch assembly
13. A/T device harness connector 14. Plate 15. Control device assembly
WCIA0638E
Page 216 of 2771
AT-204
< SERVICE INFORMATION >
SHIFT CONTROL SYSTEM
REMOVAL
CAUTION:
Make sure that parking brake is applied before removal/installation.
1. Place the selector lever in the “N” position.
2. Remove the center console assembly. Refer to IP-10
.
3. Disconnect the A/T device harness connector (1).
4. Remove the key interlock cable from the control device assem-
bly. Refer to AT-213, "
Removal and Installation".
5. Remove the bolts (A) from the control device assembly (1).
6. Remove exhaust front tube, center muffler and heat plates.
Refer to EM-21
.
1. Selector lever knob 2. Control device assembly 3. Lock plate
4. Floor panel 5. Control cable 6. Bracket
7. Lock plate 8. Lock nut 9. A/T assembly
10. Bracket 11. Bracket
WCIA0640E
SCIA6965E
WCIA0609E