Page 1145 of 2103

AUTOMATIC TRANSAXLE.
ENGINE Troubleshooting
Code Scan tool 26Pressure switch circuit: P r o b a b l e
No. ,
General scan tool .
A mismatch has occurred between the shift condition and the pressure switch condition
(ON/OFF) while the vehicle is moving. l fluid level in l assembly l
Harness or connector between pressure
switch and open or lHarness or connector between pressure open or l Malfunction of TCM transaxle problem
l Carry out the inspection procedure for code No. 22. (Refer
to
l Carry out the inspection procedure for code No. 24. (Refer
to
Pressure switch circuit: ALL
A mismatch has occurred between the shift condition and the pressure switch condition
(ON/OFF) while the vehicle is moving. fluid level Malfunction of pressure switch assembly
Harness or connector between OD pressure
I n t e r n a l t r a n s a x l e
lCarry out the inspection procedure for code No. 21. (Refer
to.
l Carry out the inspection procedure for code No. 22. (Refer
to 135)l Carry out the inspection procedure for code No. 24. (ReferI
to
. ,
Revision
Page 1146 of 2103
AUTOMATIC TRANSAXLE
ENGINE (NON-TURBO)> ‘Troubleshooting,
cause
Malfunction range lHarness or connector between transaxle rangesensor and open or short-circuited
lTransaxle range sensor ground open-circuitedl Malfunction of
Code Scan tool 28Check shifter signal
No.General scan tool
Case 1 Invalid code timer has expired (100 msec).
Case 2 Third occurrence of setting data error flag since start-up
SCAN TOOL Data list
26 Transaxle range sensor 43 l Ignition switch: ON
OK: Shift lever position
2, L: ONOtherthan OFF
NG
OK
SCAN TOOL Data list Check the transaxle range sensor Replace the transaxle range sensor 27 Transaxle range sensor 41.. . . I
OK:
(Refer to
Check the following connector:
l
INTERMITTENTl the DTC information Check the harness wire between the
transaxle ranae sensor and TCM
(Check
power)
ground. range of check, settingcondition).l
Refer to INTRODUCTION How
to Cope with Intermittent Malfunc-
tion.
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Page 1147 of 2103

AUTOMATIC TRANSAXLE
ENGINE (NON-TURBO)> Troubleshooting
Code Scan tool Throttle position signal
No.General scan tool
l Throttle angle less than 6 degrees, or Throttle gre ater than 120.6 degrees.
l The engine must be running.
OKCheck that the engine lamp is on
- - R e f o r m P C M d i a g n o s t i c s . the enaine
c a u s e
l Malfunction of sensorlHarness or connector between sensor and TCM open or short-circuited
l or connector sensor output and TCM open or short-circuitedl Malfunction of l Malfunction of . .
I ,
O K :
00 Throttle position sensor
l Disconnect the connector Check the following connector:l Engine ground connectionl l Ignition switch: ONI ,
,OK: More than OKA b n o r m a l i t y(no diagnostic trouble
connector
Abnormality exists trouble codepresent)
To INSPECTION CHART FOR
TROUBLE CODES
(Refer to
Measure at TCM connector l Disconnect the connector and
measure at the harness side Check the following connector:
l Connector
disconnected
l Voltage between (52) and ground
l Ignition switch: ON
OK: More than
Check the harness wire between the
TCM and the throttle position sensor
Measure at TCM connector and Check the harness wire between the
throttle position connector TCM and the throttle sensor
l Disconnect the connector and
measure at the harness side.
l
Less than
OK
,
.
Check the following connector:
l Replace the TCM
NG
Repair
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Page 1148 of 2103

AUTOMATIC TRANSAXLE
ENGINE (NON-TURBO)> Troubleshootihg
Code Scan tool 31Hydraulic pressure switch: ODProbable
No.General scan tool
Pressure switch falls to respond within specified time for given temperature range.
l Low/high fluid level in transaxle
l Malfunction of pressure switch assembly
l Internal transaxle problem
OKNGHydraulic pressure check Check the following Repair
l Measure the overdrive clutch pressure
l
l engine
l Disconnect the solenoid and pressure switchOK
assembly connector and apply system voltage
between terminals (6) (8).
WARNING: FRONT WHEELS MUST BE OFFReplace the solenoid and pressure switch bly.
THE GROUND BEFORE PRO-CEEDING.
NOTE: Step on the brake pedal so the wheels won’t rotate.
l Select lever: Increase the engine speed slightly.
S t a n d a r d
(75-95 psi)
every 3 seconds
Check the transmission fluid level.
NG
Repair
l Solenoid and pressure switch assembly
Internal transaxle failure. (Refer to
Code Scan tool 32 Hydraulic pressure switch: 2-4 Probable cause
No.General scan tool
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Pressure switch falls to respond within specified t
ime for given temperature range.l
Low/high fluid level in transaxle
l Malfunction of pressure switch assembly
l Internal transaxle problem
Hydraulic pressure check
l Measure the 2-4 clutch pressure
Start engine
following connector
WARNING: FRONT WHEELS MUST BE OFF THE GROUND BEFORE PRO-
CEEDING. on the brake pedal so that wheels
won’t rotate.
l Select lever:
l increase the engine speed slightly.
S t a n d a r d
(75-95 psi)
everv 3 seconds
NGOK
NG Repair
OK
the solenoid and pressure switch assem-
Check the transmission fluid level.
NG
Possible causes:
l Solenoid and pressure switch assembly
linternal transaxle failure. (Refer to
Page 1149 of 2103

AUTOMATIC TRANSAXLE
ENGINE (NON-TURBO)> Troubleshooting
Code Scan tool 33Hydraulicpressureswitch:
No.General scan tool
Pressure switch falls to respond within specified t ime for given temperature range.
l Low/high fluid level in transaxle Malfunction Internal transaxle problem
,l Carry out the inspection procedure for code No. 31. (Refertol Carry out the inspection procedure for code No. 32. (Refer
to
Code Scan tool 35 Check level . Probable cause No.General scan tool
No pressure is present for any element.l fluid level in l
Malfunction of oil filter
l Missing O-ring
l Malfunction of transmission fluid cooler
Code Scan tool 38
Fault immediately after a shift Probable cause
No.General scan tool
Fault happened within 1.3 second of a shift (This code is not stored alone. It if
a speed error (codes through 58) is detected immediately after a l Internal transaxle problem
(Refer to Speed errors) I
Code
Scan tool 37 Solenoid switch valve latched in
No.General scan tool the LU position
Three unsuccessful attempts shift gear.
Probable
l
Internal transaxle problemlRefer to Inspection for diagnostic trouble
code. (Internal transaxle problem
Lock-up control out of rangeProbable cause
Electronically Modulated Converter Clutch (EMCC) op eration is inhibitedl L o w / h i g h f l u i d l e v e l i n I n t e r n a l p r o b l e m
checkNGI -..< .
l - Measure the torque converter clutch offcontrol valves.
l‘Use the scan tool to erase diagnostic troublecodes.l Drive the vehicle in overdrive until it is fully
warmed up.
lDrive in gear overdrive for a minimum of10 seconds.NOTEl The vehicle speed must be greater than 80 (50 mph).lThrottle must be open greater than 6 degrees.
Standard value: Less than 69 (10 psi)
ROAD TESTOK: Code 38 set. Check the transmission fluid level.OK
NG Repair
Replacethetorqueconverterandtransmissionfluid
cooler.
Possible cause:lInternal transaxle failure. (Refer to
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Page 1150 of 2103

AUTOMATIC TRANSAXLE
ENGINE (NON-TURBO)> Troubleshooting
Code Scan tool 41Solenoid circuit error: Probable cause
No.General scan tool
A shift must not be in progress; an selector lever position, pressure switch, or watchdog
l of pressure switch assembly
test must not be in progress; no spike must be dete cted from the solenoid during the first
l Harness or connector between solenoidtest, or a pressure switch problem, or a speed prob lem. The code sets if the solenoid continuityand TCM open or short-circuited
test failed for the second time, or if there is eit her a pressure switch or speed data problem
l TCM ground open-circuited
and the solenoid continuity test failed for the fir st time.
l Malfunction of TCM
Measure at the TCM connector
lDisconnect the connector and
measure at the harness side.
lResistance value between and
switch assembly connector
ground.OK: Less than
NG
l Resistance value between (4) andground.OK: Less than
NG
Check the harness wire between theTCM and solenoid and pressure switch
assemblv.
Replace the solenoid and switch
Check trouble symptom.
N G
Replace the TCM
Measure at the TCM connector
and solenoid and pressure switch as-
sembly connector
l Disconnect the connector and
measure at the harness side.
l between (60)and (4)
OK: Less than
OK
Measure at EATX
and solenoid and pressure switch as-
sembly connector
l Disconnect the connector and
measure at the harness side.
lResistance value between (8)and (6).
OK: Less than
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Check the
Replace the TCM
OK
Replace the solenoid and pressure
s w i t c h a s s e m b l y .
TCM and solenoid and pressure switch
assembly.
NG Check the harness wire between the EATX Relay and solenoid pressure
switch assembly.
Page 1151 of 2103

AUTOMATIC TRANSAXLE
Troubleshooting
Code Scan tool 42 Solenoid circuit error: 2-4
No.General scan tool
A shift must not be in progress; an selector lever
position, or watchdog
test must not be in progress; no must be detected from the solenoid during the firs ttest, or a pressure switch problem, or a speed prob lem. The code sets if the solenoid continuitytest failed for the second time, or if there is a pressure switch or speed data problem
and the solenoid continuity test failed for the fir st time.
Measure at the TCM connector NG
l Disconnect the connector and
measure at the harness side.
lResistance value between (59) and
ground.
OK: Less than
OK
Measure at the TCM connector l Disconnect the connector and
measure at the harness side.
l
Resistance value between (56) and
OK: 1
.
of pressure switch lHarness or connector between open or . l ground open-circuited
l Resistance value between (59) and
Check the harness wire between theTCM and solenoid and pressure switch
Check trouble symptom.
Replace the TCM
ING
the TCM
NG,Measure at the TCM connector Check the harness wire between theTCM and solenoid and pressure switchand solenoid and pressure switch connector assembly.l Disconnect the connector and .
measure at the harness side.
lResistance value between (59)and (3)OK: Less than I
Measure at EATX Relay connector .
and solenoid and pressure switch as-
sembly connector
l Disconnect the connector and
measure at the harness side.
lResistance value between (8)and (6).
OK: Less than
OK
Replace the solenoid and pressureswitch assembly.
Check the harness wire between the
. . ,
. . , ,
,
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Page 1152 of 2103

AUTOMATIC TRANSAXLE
ENGINE
Code Scan tool 43Solenoid circuit error: Probable cause
No.General scan tool
A shift must not be in progress; an selector lever position, pressure switch, or watchdog
test must not be in progress: no spike must be dete cted from the solenoid during the firstl of pressure ‘assemblylHarness or between OD test, or a pressure switch problem, or a speed prob
lem. The code sets if the solenoid continuitytest failed for the second time, or if there is either a pressure switch or speed data problem and TCM open or l
TCM ground open-circuited
and the solenoid continuity test failed for the fir st time.
l Malfunction of TCM
OK Check the following connector:lDisconnect the connector andDisconnect the connector andl
OK Resistance value between (20) andNGReplace the solenoid and pressureswitch assembly.
Check the wire between the
Replace the TCM
Measure at the TCM connector l Disconnect the connector and
measure at the harness side.
lResistance value between and
OK: 1
NG Measure at the TCM connector Check the harness the
l Disconnect the connector and TCM and ground.
measure at the harness side.
lResistance value between and ground.
OK: Less than
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N GOK
Check the following connector:
l NG Repair
OK
Replace the TCM
NGMeasure at the TCM connector and solenoid and pressure switch sembly connector l Disconnect the connector and
Check the harness wire between theTCM and solenoid and pressure switch
assembly.
Measure at EATX Relay connector
and solenoid and pressure switch EATX Relay and solenoidpressuresembly connector l Disconnect the connector and
measure at the harness side.
lResistance value between (8)and (6).
OK: Less than
OK
Replace the solenoid and pressure
s w i t c h a s s e m b l y .