Mitsubishi Galant. Manual — part 405
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-87
STEP 10. Check harness for short circuit to ground
between crankshaft position sensor connector B-20
terminal 2 and PCM connector C-40 terminal 45.
Q: Is the harness wire in good condition?
YES : Go to Step 4.
NO : Repair it.
AC004909
CONNECTOR: B-20
<2.4L ENGINE>
AB
AC004910
CONNECTOR: B-20
<3.0L ENGINE>
AB
AC004197
PCM
AD
CONNECTOR: C-40
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-88
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
.
AC004909
CONNECTOR: B-20
<2.4L ENGINE>
AB
AC004910
CONNECTOR: B-20
<3.0L ENGINE>
AB
ACX02112
HARNESS
CONNECTOR: B-20
AC
AC004286 AB
MFI RELAY
BATTERY
CONNECTOR: A-21X
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-89
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.
AC004909
CONNECTOR: B-20
<2.4L ENGINE>
AB
AC004910
CONNECTOR: B-20
<3.0L ENGINE>
AB
ACX02113
HARNESS
CONNECTOR: B-20
AC
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-90
STEP 14. Check connectors C-40 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
.
AC004197
PCM
AD
CONNECTOR: C-40
AC004286 AB
MFI RELAY
BATTERY
CONNECTOR: A-21X
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