Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 451

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-95

STEP 10. Check harness for short circuit to ground
between crankshaft position sensor connector B-20
terminal 2 and PCM connector C-54 <2.4L Engine> or C-55
<3.0L Engine> terminal 45.
Q: Is the harness wire in good condition?

YES : Go to Step 4.
NO : Repair it.

AC004926AB

CONNECTOR: B-20
<2.4L ENGINE>

AC004927AB

CONNECTOR: B-20
<3.0L ENGINE>

AC001657

CONNECTOR: C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>

PCM

AL

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-96

STEP 11. Check the power supply voltage at crankshaft
position sensor connector B-20.
(1) Disconnect connector B-20 and measure at the harness

side.

(2) Turn the ignition switch to "ON" position.

(3) Measure the voltage between terminal 3 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.

STEP 12. Check connector A-21X at MFI relay for damage.
Q: Is the connector in good condition?

YES : Repair it because of harness open circuit or short

circuit to ground between MFI relay connector A-21X
terminal 1 and crankshaft position sensor connector
B-20 terminal 3.

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

Connector Inspection

P.00E-2

.

AC004926AB

CONNECTOR: B-20
<2.4L ENGINE>

AC004927AB

CONNECTOR: B-20
<3.0L ENGINE>

ACX02112

HARNESS
CONNECTOR: B-20

AC

AC004306AB

BATTERY

CONNECTOR: A-21X

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-97

STEP 13. Check the continuity at crankshaft position
sensor connector B-20.
(1) Disconnect connector B-20 and measure at the harness

side.

(2) Check for the continuity between terminal 1 and ground.

•

Should be less than 2 ohm.

Q: Is the continuity normal?

YES : Go to Step 14.
NO : Repair it because of harness open circuit or damage

between crankshaft position sensor connector B-20
terminal 1 and ground.

AC004926AB

CONNECTOR: B-20
<2.4L ENGINE>

AC004927AB

CONNECTOR: B-20
<3.0L ENGINE>

ACX02113

HARNESS
CONNECTOR: B-20

AC

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-98

STEP 14. Check connectors C-54 <2.4L Engine> or C-55
<3.0L Engine> at PCM and A-21X at the MFI relay for
damage.
Q: Are the harness connectors in good condition?

YES : Go to Step 15.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

.

AC001657

CONNECTOR: C-54 <2.4L ENGINE> OR
C-55 <3.0L ENGINE>

PCM

AL

AC004306AB

BATTERY

CONNECTOR: A-21X