Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 475
AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
23A-192
DTC 32: Underdrive Solenoid Valve System
Solenoid Valve System Circuit
Refer to
.
CIRCUIT OPERATION
Refer to
.
DTC SET CONDITIONS
If the resistance value for a solenoid valve circuit is
greater than 3.5
Ω
for 4 seconds at 100
°
C (212
°
F) or
less than 2.6
Ω
for 4 seconds at 100
°
C (212
°
F), it is
judged that there is a short circuit or an open circuit
in the solenoid valve and the diagnostic trouble code
number "32" is displayed. The transmission is locked
into 3rd gear as a fail-safe measure, and the "N"
range light flashes once per second.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set:)
•
Malfunction of underdrive solenoid valve
•
Damaged harness, connector
•
Malfunction of the PCM
DIAGNOSIS
Required Special Tool:
MB991502: Scan Tool (MUT-II)
STEP 1. Using scan tool MB991502, read the A/T
diagnostic trouble code.
CAUTION
To prevent damage to scan tool MB991502, always turn the
ignition switch to "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to "ON" position.
(3) Read the A/T diagnostic trouble code.
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the A/T diagnostic trouble code number "54" output?
, code number 54: A/T control
relay system.
NO : Go to Step 2.
AC001252
MB991502
16 PIN
AB
AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
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STEP 2. Using scan tool MB991502, check actuator test
item 02: Underdrive Solenoid Valve.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to "ON" position.
(3) Set scan tool MB991502 to actuator test mode for item 02:
Underdrive Solenoid Valve.
•
An operation sound should be heard from solenoid
valve when the underdrive solenoid valve is operated.
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the solenoid valve operating properly?
YES : This malfunction can be intermittent. Refer to GROUP
00, How to Use Troubleshooting/Inspection Service
Points
−
How to Cope with Intermittent Malfunction
NO : Go to Step 3.
STEP 3. Check the solenoid valve output voltage at PCM
connector C-61 <2.4L Engine> or C-63 <3.0L Engine> by
backprobing.
(1) Do not disconnect connector C-61 <2.4L Engine> or C-63
<3.0L Engine>.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 120 and ground by
backprobing.
•
Voltage should be battery positive voltage.
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage normal?
YES : Go to Step 4.
NO : Go to Step 9.
AC001252
MB991502
16 PIN
AB
AC001657
CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>
PCM
AN
AC001961
C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>
CONNECTOR HARNESS
SIDE VIEW
AD
AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
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STEP 4. Check connectors B-40 at solenoid valve
assembly and C-61 <2.4L Engine> or C-63 <3.0L Engine> at
PCM for damage.
Q: Are the connectors in good condition?
YES : Go to Step 5.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
STEP 5. Check harness for damage between solenoid
valve assembly connector B-40 terminal 3 and PCM
connector C-61 <2.4L Engine> or C-63 <3.0L Engine>
terminal 120.
Q: Is the harness wire in good condition?
YES : Go to Step 6.
NO : Repair it.
ACX02479
CONNECTOR: B-40
AE
AC001657
CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>
PCM
AN
ACX02479
CONNECTOR: B-40
AE
AC001657
CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>
PCM
AN
AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
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STEP 6. Check connector A-19X at A/T control relay for
damage.
Q: Is the connector in good condition?
YES : Go to Step 7.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
STEP 7. Check harness for damage between solenoid
valve assembly connector B-40 terminal 9 and A/T control
relay connector A-19X terminal 3.
Q: Is the harness wire in good condition?
YES : Go to Step 8.
NO : Repair it.
AC001655
CONNECTOR: A-19X
BATTERY
A/T CONTROL
RELAY
AD
ACX02479
CONNECTOR: B-40
AE
AC001655
CONNECTOR: A-19X
BATTERY
A/T CONTROL
RELAY
AD
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