Mitsubishi Eclipse. Manual — part 819
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-285
STEP 7. Measure the resistance at A/T control relay
connector A-17X in the engine component relay box.
(1) Disconnect the A/T control relay.
(2) Measure the resistance between terminal 3 and ground.
• The resistance should measure less than 2 ohms.
Q: Is the measured resistance less than 2 ohms?
YES : Go to Step 9.
NO : Go to Step 8.
STEP 8. Check the harness for open circuit or damage
between A/T control relay connector A-17X terminal 3 in
the engine component relay box and ground.
Q: Is the harness wire in good condition?
YES : Go to Step 17.
NO : Repair or replace the harness wire.
AC102447AF
BATTERY
CONNECTOR: A-17X
A-17X
FRONT OF VEHICLE
AC201515
1
2
3
4
A17X HARNESS
CONNECTOR:
RELAY BOX SIDE
FRONT OF
VEHICLE
AD
AC102447AF
BATTERY
CONNECTOR: A-17X
A-17X
FRONT OF VEHICLE
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-286
STEP 9. Measure the control voltage to A/T control relay
connector A-17X in the engine component relay box.
(1) Disconnect the A/T control relay.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 2 and ground.
• The measured voltage should equal battery positive
voltage.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage equal to battery positive
voltage?
YES : Go to Step 14.
NO : Go to Step 10.
STEP 10. Check the supply voltage at PCM connector C-54
<2.4L Engine> or C-55 <3.0L Engine> by backprobing.
(1) Do not disconnect connector C-54 <2.4L Engine> or C-55
<3.0L Engine>.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 50 and ground by
backprobing.
• The measured voltage should equal battery positive
voltage.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Does the measured voltage equal battery positive
voltage?
YES : Go to Step 11.
NO : Go to Step 13.
AC102447AF
BATTERY
CONNECTOR: A-17X
A-17X
FRONT OF VEHICLE
1
2
3
4
AC100118AF
A-17X HARNESS
CONNECTOR:
RELAY BOX SIDE
FRONT OF
VEHICLE
AC001657
CONNECTOR: C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>
PCM
BA
C-54 <2.4L ENGINE> OR C-55 <3.0L ENGINE>
AC002010 AN
C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>
HARNESS CONNECTOR:
HARNESS SIDE
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-287
STEP 11. Check PCM connector C-54 <2.4L Engine> or
C-55 <3.0L Engine> for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Are the connector and terminals in good condition?
YES : Go to Step 12.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
STEP 12. Check the harness for open circuit or damage
between A/T control relay connector A-17X terminal 2 in
the engine component relay box and PCM connector C-54
<2.4L Engine> or C-55 <3.0L Engine> terminal 50.
Q: Is the harness wire in good condition?
YES : Go to Step 17.
NO : Repair or replace the harness wire.
AC001657
CONNECTOR: C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>
PCM
BA
C-54 <2.4L ENGINE> OR C-55 <3.0L ENGINE>
AC102447AF
BATTERY
CONNECTOR: A-17X
A-17X
FRONT OF VEHICLE
AC001657
CONNECTOR: C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>
PCM
BA
C-54 <2.4L ENGINE> OR C-55 <3.0L ENGINE>
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-288
STEP 13. Check for a short circuit to ground between A/T
control relay socket A-17X terminal 2 and PCM connector
C-54 <2.4L Engine> or C-55 <3.0L Engine> terminal 50.
Q: Is the harness wire in good condition?
YES : Go to Step 17.
NO : Repair or replace the harness wire.
AC102447AF
BATTERY
CONNECTOR: A-17X
A-17X
FRONT OF VEHICLE
AC001657
CONNECTOR: C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>
PCM
BA
C-54 <2.4L ENGINE> OR C-55 <3.0L ENGINE>
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