Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 478
AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
23A-204
STEP 10. Check the second solenoid valve at solenoid
valve assembly connector B-40.
(1) Disconnect connector B-40 and measure at the solenoid
valve side.
(2) Measure the resistance between terminal 4 and 9.
Standard value: 2.7 - 3.4
Ω
Q: Is the resistance at the standard value?
YES : Go to Step 11.
NO : Replace the second solenoid valve. Refer to GROUP
23B, Valve Body
.
STEP 11. Check the power supply voltage at solenoid
valve assembly connector B-40.
(1) Disconnect connector B-40 and measure at the harness
side.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 9 and ground.
•
Voltage should be battery positive voltage.
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage normal?
YES : Go to Step 13.
NO : Go to Step 12.
ACX02479
CONNECTOR: B-40
AE
AC001964
HARNESS
CONNECTOR: B-40
AD
ACX02479
CONNECTOR: B-40
AE
AC001967
HARNESS
CONNECTOR: B-40
AD
AUTOMATIC TRANSAXLE DIAGNOSIS
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AUTOMATIC TRANSAXLE
23A-205
STEP 12. Check connector A-19X at A/T control relay for
damage.
Q: Is the connector in good condition?
YES : Repair it because of harness open circuit or short
circuit to ground between solenoid valve assembly
connector B-40 terminal 9 and A/T control relay
connector A-19X terminal 3.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
STEP 13. Check connectors C-61 <2.4L Engine> or C-63
<3.0L Engine> at PCM connector for damage.
Q: Are the connectors in good condition?
YES : Go to Step 14.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
STEP 14. Check harness for open circuit, or short circuit to
ground between solenoid valve assembly connector B-40
terminal 4 and PCM connector C-61 <2.4L Engine> or C-63
<3.0L Engine> terminal 106.
Q: Is the harness wire in good condition?
YES : Replace the PCM.
NO : Repair it.
AC001655
CONNECTOR: A-19X
BATTERY
A/T CONTROL
RELAY
AD
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
23A-206
DTC 34: Overdrive 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 "34" 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
23A-207
STEP 2. Using scan tool MB991502, check actuator test
item 04: Overdrive 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 04,
Overdrive Solenoid Valve.
•
An operation sound should be heard from solenoid
valve when the overdrive 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 130 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
AC001965
C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>
CONNECTOR HARNESS
SIDE VIEW
AD
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