Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 499

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-288

STEP 5. Check connectors C-12 at automatic compressor
controller and C-94 at intermediate connector for damage.
Q: Are the connectors in good condition?

YES : Go to Step 6.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

.

STEP 6. Check harness for short circuit to ground between
dual pressure switch connector A-36 terminal 1 and
automatic compressor controller connector C-12 terminal
4.
Q: Is the harness wire in good condition?

YES : Go to Step 7.
NO : Repair it.

AC001741

CONNECTOR: C-12

AN

AC001800

CONNECTOR: C-94

AE

CONNECTOR BLOCK (RH)

AC004374

CONNECTOR: A-36

AB

AC001741

CONNECTOR: C-12

AN

AUTOMATIC TRANSAXLE DIAGNOSIS

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AUTOMATIC TRANSAXLE

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STEP 7. Using scan tool MB991502, check data list item 65:
Dual Pressure Switch.

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) Start the engine and run at idle.
(3) Set scan tool MB991502 to data reading mode for item65:

Dual Pressure Switch.

•

When the A/C is in operation, the scan tool display
should be "ON."

•

When the A/C is not in operation, the scan tool display
should be "OFF."

(4) Turn the ignition switch to "LOCK" (OFF) position.

Q: Is the switch operating properly?

YES : This malfunction is intermittent. Refer to GROUP 00,

How to Use Troubleshooting/Inspection Service
Points

−

How to Cope with Intermittent Malfunction

P.00-6

.

NO : Check the air conditioning system. Refer to GROUP

55A, Troubleshooting Strategy

P.55-5

.

STEP 8. Check connectors C-12 at automatic compressor
controller and C-94 at intermediate connector for damage.
Q: Are the connectors in good condition?

YES : Repair it because of harness open circuit between

automatic compressor controller connector C-12
terminal 4 and dual pressure switch connector A-36
terminal 1.

NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

.

AC001252AE

16 PIN

MB991502

AC001741

CONNECTOR: C-12

AN

AC001800

CONNECTOR: C-94

AE

CONNECTOR BLOCK (RH)

AUTOMATIC TRANSAXLE DIAGNOSIS

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AUTOMATIC TRANSAXLE

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STEP 9. Check the switch output voltage at PCM
connector C-57 <2.4L Engine> or C-59 <3.0L Engine> by
backprobing.
(1) Do not disconnect connector C-41.
(2) Start the engine and run at idle.
(3) Operate the A/C.

(4) Measure the voltage between terminal 83 and ground by

backprobing.

•

When the A/C is in operation, the voltage should be
battery positive voltage.

•

When the A/C is not in operation, the voltage should be
0.5 volt or less.

(5) Turn the ignition switch to "LOCK" (OFF) position.

Q: Is the voltage normal?

YES : Go to Step 14.
NO : Go to Step 10.

AC001657

CONNECTOR: C-57 <2.4L ENGINE> OR
C-59 <3.0L ENGINE>

AK

PCM

AC002096

C-57 <2.4L ENGINE> OR
C-59 <3.0L ENGINE>
CONNECTOR HARNESS
SIDE VIEW

AE

AUTOMATIC TRANSAXLE DIAGNOSIS

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AUTOMATIC TRANSAXLE

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STEP 10. Check connectors C-57 <2.4L Engine> or C-59
<3.0L Engine> at PCM and C-06, C-07 at intermediate
connector for damage.
Q: Are the connectors in good condition?

YES : Go to Step 11.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

.

AC001657

CONNECTOR: C-57 <2.4L ENGINE> OR
C-59 <3.0L ENGINE>

AK

PCM

AC001729AU

CONNECTOR: C-06

AC001729AT

CONNECTOR: C-07