Mitsubishi Eclipse. Manual — part 835

AUTOMATIC TRANSAXLE DIAGNOSIS

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AUTOMATIC TRANSAXLE

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STEP 7. Check auto-cruise control-ECU connector C-20 at
for looser, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are the connector and terminals in good condition?

YES : Go to Step 10.
NO : Repair or replace the damaged components. Refer to

GROUP 00E, Harness Connector Inspection

P.00E-2

.

STEP 8. Check auto-cruise control-ECU connector C-20
and inter mediate connector C-28 for looser, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are the connectors and terminals in good condition?

YES : Go to Step 9.
NO : Repair or replace the damaged components. Refer to

GROUP 00E, Harness Connector Inspection

P.00E-2

.

AC001741

CONNECTOR: C-20

AU

C-20

AC001741

CONNECTOR: C-20

AU

C-20

AC106611AB

CONNECTOR: C-28

C-28

AUTOMATIC TRANSAXLE DIAGNOSIS

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STEP 9. Check harness for short circuit to ground between
PCM connector C-57 <2.4L Engine> or C-59 <3.0L Engine>
terminal 75 and auto-cruise control-ECU connector C-20
terminal 3.
Q: Is the harness wire in good condition?

YES : Go to Step 10.
NO : Repair or replace the harness wire.

AC001657

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

AZ

PCM

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

AC001741

CONNECTOR: C-20

AU

C-20

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STEP 10. Using scan tool MB991958, check data list item
66: Overdrive Off Signal (Auto-cruise control-ECU Signal).

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Start the engine and prepare to test drive the vehicle.

(Operate the auto-cruise)

(3) Set scan tool MB991958 to data reading mode for item 66:

Overdrive Off Signal (Auto-cruise control-ECU Signal).

• When driving at level road, the display should be "OFF."

• When driving at uphill road, the display should be "ON."

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the sensor operating properly?

YES : It can be assumed that this malfunction can be

intermittent. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points

− How to

Cope with Intermittent Malfunction

P.00-6

.

NO : Replace the PCM.

AC303127

AB

MB991911

16-PIN

MB991827

MB991824

AUTOMATIC TRANSAXLE DIAGNOSIS

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INSPECTION PROCEDURE 17: Vehicle Speed Signal System

AC102736AB

Vehicle Speed Signal System Circuit