Page 2697 of 2870
4AT(H4DOTC)-121
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
RHD model
Step Check Yes No
1 CHECK HOLD SWITCH OPERATION.When the HOLD switch is
turned to OFF, does LED light
up?Go to step 5.Go to step 2.
AT-01859
SBF-4 SBF-1
No.14
i10
i3
B38
B54
B133
B15
C7
16
E
B54
123456
78 9 10 1112
13
14
15 16 17
1819
2021
2223
24
2526
2728
2930
i10
POWEROFF HOLD
3
4
E
HOLD
i2
B133
12
34
56219
32
i3
1234
56
10 11 12 13 14 157
16
23 3019 20
22 26 27 28 298
17
24 3118
25
6i2
B37
26
POWER AND HOLD
SWITCH IGNITION
SWITCHBATTERY
COMBINATION
METER
TCM
123
8910411 12
13 14 15 1656
7
17
123 8
910411 12 13 14 15 165671718
Page 2698 of 2870

4AT(H4DOTC)-122
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
2 CHECK HOLD SWITCH OPERATION.When the HOLD switch is
turned to ON, does LED light
up?Go to step Check
Kick-Down Switch.
4AT(H4DOTC)-
124, CHECK
KICK–DOWN
SWITCH, Diagnos-
tic Procedure with-
out Diagnostic
Trouble Code
(DTC).>Go to step 3.
3 CHECK HOLD INDICATOR LIGHT.
1) Turn the ignition switch to OFF.
2) Remove the combination meter.
3) Remove the HOLD indicator light bulb from
combination meter.Is the HOLD indicator light bulb
OK?Go to step 4.Replace the HOLD
indicator light bulb.
Combination
Meter Assembly.>
4 CHECK HOLD SWITCH GROUND LINE.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from HOLD switch.
3) Measure the resistance of harness connec-
tor between HOLD switch and chassis ground.
Connector & terminal
LHD model
(R92) No. 4 — Chassis ground:
RHD model
(B133) No. 4 — Chassis ground:Is the resistance less than 1
Ω?Go to step 5.Repair the open
circuit in harness
between HOLD
switch and chas-
sis ground.
5 CHECK HOLD SWITCH.
1) Turn the HOLD switch to ON.
2) Measure the resistance between terminals
of HOLD switch.
Te r m i n a l s
No. 4 — No. 3:Is the resistance less than 1
Ω?Go to step 6.Replace the HOLD
switch.
6 CHECK HOLD SWITCH.
1) Turn the HOLD switch to OFF.
2) Measure the resistance between terminals
of HOLD switch.
Te r m i n a l s
No. 4 — No. 3:Is the resistance more than 1
MΩ?Go to step 7.Replace the HOLD
switch.
7 CHECK HARNESS CONNECTOR BETWEEN
TCM AND HOLD SWITCH.
1) Disconnect the connector TCM and combi-
nation meter.
2) Measure the resistance of harness connec-
tor between TCM and HOLD switch.
Connector & terminal
LHD model
(B54) No. 2 — (R92) No. 3:
RHD model
(B54) No. 2 — (B133) No. 3:Is the resistance less than 1
Ω?Go to step 8.Repair the open
circuit in harness
between TCM and
HOLD switch con-
nector and poor
contact in cou-
pling connector.
8 CHECK HARNESS CONNECTOR BETWEEN
TCM AND COMBINATION METER.
Measure the resistance of harness connector
between TCM and combination meter.
Connector & terminal
(B54) No. 6 — (i10) No. 14:Is the resistance less than 1
Ω?Go to step 9.Repair the open
circuit in harness
between TCM and
combination
meter, and poor
contact in cou-
pling connector. Step Check Yes No
Page 2699 of 2870
4AT(H4DOTC)-123
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
9 CHECK HARNESS CONNECTOR BETWEEN
TCM AND HOLD SWITCH.
Measure the resistance of harness connector
between TCM and chassis ground to make
sure that circuit does not short.
Connector & terminal
(B56) No. 6 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 10.Repair the short
circuit in harness
between TCM and
HOLD switch con-
nector.
10 CHECK POOR CONTACT.Is there poor contact in HOLD
switch circuit?Repair the poor
contact.A temporary poor
contact of the con-
nector or harness or
connector in HOLD
switch circuit. Step Check Yes No
Page 2700 of 2870
4AT(H4DOTC)-124
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
D: CHECK KICK–DOWN SWITCH
DIAGNOSIS:
The kick-down switch is OFF when the throttle is partially open or fully closed, but it is not ON when the
throttle is fully opened.
The kick-down switch circuit is open or shorted.
TROUBLE SYMPTOM:
No kick-down occurs (when the throttle is fully opened).
WIRING DIAGRAM:
Step Check Yes No
1 CONFIRM MODEL.Is the vehicle 2.0 L model? Go to step 2.Go to Symptom
Related Diagnostic.
4AT(H4DOTC)-
126, Symptom
Related Diagnos-
tic.>
2 CHECK KICK-DOWN SWITCH OPERATION.When the accelerator pedal is
depressed, does “ON” dis-
played?Go to Symptom
Related Diagnostic.
4AT(H4DOTC)-
126, Symptom
Related Diagnos-
tic.>Go to step 3.
AT-01860
E
B54
B54 TCM
KICK-DOWN
SWITCH
B129 1 2
B129
11
1
2123
8910411 12
13 14 15 1656
7
17
Page 2701 of 2870

4AT(H4DOTC)-125
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
3 CHECK KICK-DOWN SWITCH GROUND
LINE.
1) Disconnect the connector from kick-down
switch.
2) Measure the resistance of harness connector
between kick-down switch and chassis ground.
Connector & terminal
(B129) No. 1 — Chassis ground:Is the resistance less than 1
Ω?Go to step 4.Repair the open cir-
cuit in harness
between kick-down
switch and TCM.
4 CHECK KICK-DOWN SWITCH.
Measure the resistance for kick-down switch
when depressing the accelerator pedal.
Te r m i n a l s
No. 1 — No. 2:Is the resistance less than 1
Ω?Go to step 5.Replace the kick-
down switch.
to SP(H4SO)-4,
Accelerator
Pedal.>
5 CHECK KICK-DOWN SWITCH.
Measure the resistance for kick-down switch
when pressing the accelerator pedal.
Te r m i n a l s
No. 1 — No. 2:Is the resistance more than 1
MΩ?Go to step 6.Replace the kick-
down switch.
6 CHECK HARNESS CONNECTOR BETWEEN
TCM AND KICK-DOWN SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from kick-down
switch.
3) Measure the resistance of harness connec-
tor between TCM and kick-down switch.
Connector & terminal
(B54) No. 11 — (B129) No. 2:Is the resistance less than 1
Ω?Go to step 7.Repair the open
circuit in harness
between TCM and
kick-down switch.
7 CHECK HARNESS CONNECTOR BETWEEN
TCM AND KICK-DOWN SWITCH.
Measure the resistance of harness connector
between TCM connector and chassis ground.
Connector & terminal
(B54) No. 11 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 8.Repair the short
circuit in harness
between TCM and
chassis ground.
8 CHECK INPUT SIGNAL FOR TCM.
1) Turn the ignition switch to OFF.
2) Connect the connector to kick-down switch.
3) Turn the ignition switch to ON (engine OFF).
4) Measure the signal voltage for TCM when
not depressing the accelerator pedal.
Connector & terminal
(B55) No. 11 (+) — Chassis ground (
−):Is the voltage less than 1 V? Go to step 9.Go to step 10.
9 CHECK INPUT SIGNAL FOR TCM.
Measure the signal voltage for TCM when press-
ing the accelerator pedal.
Connector & terminal
(B55) No. 11 (+) — Chassis ground (
−):Is the voltage more than 6.5 V? A temporary poor
contact of the con-
nector and har-
ness may be the
cause. Repair the
harness and con-
nector in TCM.Go to step 10.
10 CHECK POOR CONTACT.Is there poor contact? Repair the poor
contact.Replace the TCM.
Transmission Con-
trol Module
(TCM).> Step Check Yes No
Page 2702 of 2870

4AT(H4DOTC)-126
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
15.Symptom Related Diagnostic
A: INSPECTION
Symptom Problem parts
Starter does not rotate when select lever is in “P” or “N” range,
starter rotates when select lever is in “R”, “D”, “3” or “2” range. Inhibitor switch
Select cable
Select lever
Starter motor and harness
Abnormal noise when select lever is in “P” or “N” range. Strainer
Transfer duty solenoid
Oil pump
Drive plate
ATF level too high or too low
Hissing noise occurs during standing start. Strainer
ATF level too high or too low
Noise occurs while driving in “D1”. Final gear
Planetary gear
Reduction gear
Differential gear oil level too high or too low Noise occurs while driving in “D2”.
Noise occurs while driving in “D3”. Final gear
Low & reverse brake
Reduction gear
Differential gear oil level too high or too low
Noise occurs while driving in “D4”. Final gear
Low & reverse brake
Planetary gear
Reduction gear
Differential gear oil level too high or too low
Engine stalls while shifting from “1” range to another. Control valve
Lock-up damper
Engine performance
Input shaft
Vehicle moves when select lever is in “N” range. Select cable
Inhibitor switch
TCM
Low clutch
Shock occurs when select lever is shifted from “N” to “D” range. Accelerator pedal position sensor
ATF temperature sensor
Line pressure linear solenoid
Low clutch duty solenoid
Low clutch
TCM
Harness
Control valve
ATF deterioration
Excessive time lag occurs when select lever is shifted from “N”
to “D” range. Control valve
Low clutch
Line pressure duty solenoid
Seal ring
Front gasket of transmission case
Shock occurs when select lever is shifted from “N” to “R” range. Accelerator pedal position sensor
ATF temperature sensor
Line pressure linear solenoid
TCM
Harness
Control valve
ATF deterioration
Page 2703 of 2870

4AT(H4DOTC)-127
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
Excessive time lag occurs when select lever is shifted from “N”
to “R” range. Control valve
Low & reverse clutch
Reverse clutch
Line pressure linear solenoid
Seal ring
Front gasket of transmission case
Vehicle does not start in any shift range (engine stalls). Parking brake mechanism
Planetary gear
Vehicle does not start in any shift range (engine revving up). Strainer
Line pressure linear solenoid
Control valve
Drive pinion
Hypoid gear
Axle shaft
Differential gear
Oil pump
Input shaft
Output shaft
Planetary gear
Drive plate
ATF level too low
Front gasket of transmission case
Vehicle does not start in “R” range only (engine revving up). Select cable
Select lever
Line pressure linear solenoid
Control valve
Low & reverse clutch
Reverse clutch
Vehicle does not start in “R” range only (engine stalls). Low clutch
2-4 brake
Planetary gear
Parking brake mechanism
Vehicle does not start in “D”, “3” range only (engine revving up). Low clutch
One-way clutch
Vehicle does not start in “D”, “3” or “2” range only (engine rev-
ving up).Low clutch
Vehicle does not start in “D”, “3” or “2” range only (engine
stalls).Reverse clutch
Vehicle starts in “R” range only (engine revving up). Control valve
Acceleration during standing starts is poor (high stall rpm). Control valve
Low clutch
Reverse clutch
ATF level too low
ATF deterioration
Front gasket of transmission case
Differential gear oil level too high or too low
Acceleration during standing starts is poor (low stall rpm). Oil pump
Torque converter one-way clutch
Engine performance
Acceleration is poor when select lever is in “D”, “3” or “2” range
(normal stall rpm).TCM
Control valve
High clutch
2-4 brake
Planetary gear
Acceleration is poor when select lever is in “R” (normal stall
rpm). Control valve
High clutch
2-4 brake
Planetary gear Symptom Problem parts
Page 2704 of 2870

4AT(H4DOTC)-128
AUTOMATIC TRANSMISSION (DIAGNOSTIC)
Symptom Related Diagnostic
No shift occurs from 1st to 2nd gear.TCM
Rear vehicle speed sensor
Front vehicle speed sensor
Throttle position sensor
Control valve
2-4 brake
No shift occurs from 2nd to 3rd gear.TCM
Control valve
High clutch
No shift occurs from 3rd to 4th gear.TCM
ATF temperature sensor
Control valve
2-4 brake
Engine brake is not effected when select lever is in “3” range. Inhibitor switch
TCM
Throttle position sensor
Control valve
Engine brake is not effected when select lever is in “3” or “2”
range.Control valve
Engine brake is not effected when select lever is in “1” range. Control valve
Low & reverse brake
Shift characteristics are erroneous. Inhibitor switch
TCM
Front vehicle speed sensor
Rear vehicle speed sensor
Throttle position sensor
Control valve
Ground earth
No lock-up occurs.TCM
Torque converter turbine speed sensor
Throttle position sensor
ATF temperature sensor
Control valve
Lock-up facing
Engine speed signal
Parking brake is not effected. Select cable
Select lever
Parking mechanism Shift lever cannot be moved or is hard to move from “P” range.
ATF spurts out. ATF level too high
Differential oil spurts out. Differential gear oil too high
Differential oil level changes excessively. Seal pipe
Double oil seal
Odor is produced from ATF supply pipe.High clutch
2-4 brake
Low & reverse clutch
Reverse clutch
Lock-up facing
ATF deterioration
Shock occurs from 1st to 2nd gear.TCM
Torque converter turbine speed sensor
Accelerator pedal position sensor
2-4 brake duty solenoid
ATF temperature sensor
Line pressure linear solenoid
Control valve
2-4 brake
ATF deterioration
Engine performance
Low & reverse duty solenoid Symptom Problem parts