Mitsubishi Galant. Manual — part 398
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-59
STEP 7. Check connectors B-05 at throttle position sensor
and C-41 at PCM for damage.
Q: Are the connectors in good condition?
YES : Repair it because of harness open circuit or damage
between throttle position sensor connector B-05
terminal 3 and PCM connector C-41 terminal 78.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
STEP 8. Check the power supply voltage at throttle
position sensor connector B-05 by backprobing.
(1) Do not disconnect connector B-05.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 4 and ground by
backprobing.
•
Voltage should be between 4.8 and 5.2 volts.
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage normal?
YES : Go to Step 13.
NO : Go to Step 9.
AC001831AD
CONNECTOR: B-05
<2.4L ENGINE>
<3.0L ENGINE>
AC004197
PCM
AC
CONNECTOR: C-41
AC001831AD
CONNECTOR: B-05
<2.4L ENGINE>
<3.0L ENGINE>
AC001789
B-05 CONNECTOR
HARNESS SIDE VIEW
AD
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-60
STEP 9. Check the power supply voltage at PCM connector
C-40 by backprobing.
(1) Do not disconnect connector C-40.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 46 and ground by
backprobing.
•
Voltage should be between 4.8 and 5.2 volts.
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage normal?
YES : Go to Step 10.
NO : Go to Step 11.
STEP 10. Check connectors B-05 at throttle position
sensor and C-40 at PCM for damage.
Q: Are the connectors in good condition?
YES : Repair it because of harness open circuit or damage
between throttle position sensor connector B-05
terminal 4 and PCM connector C-40 terminal 46.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
AC004197
PCM
AD
CONNECTOR: C-40
AC000848
C-40 CONNECTOR
HARNESS SIDE VIEW
AE
AC001831AD
CONNECTOR: B-05
<2.4L ENGINE>
<3.0L ENGINE>
AC004197
PCM
AD
CONNECTOR: C-40
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-61
STEP 11. Check connectors B-05 at throttle position
sensor and C-40 at PCM for damage.
Q: Are the connectors in good condition?
YES : Go to Step 12.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
.
STEP 12. Check harness for short circuit to ground
between throttle position sensor connector B-05 terminal 4
and PCM connector C-40 terminal 46.
Q: Is the harness wire in good condition?
YES : Go to Step 6.
NO : Repair it.
AC001831AD
CONNECTOR: B-05
<2.4L ENGINE>
<3.0L ENGINE>
AC004197
PCM
AD
CONNECTOR: C-40
AC001831AD
CONNECTOR: B-05
<2.4L ENGINE>
<3.0L ENGINE>
AC004197
PCM
AD
CONNECTOR: C-40
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-62
STEP 13. Check the ground voltage at throttle position
sensor connector B-05 by backprobing.
(1) Do not disconnect connector B-05.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 1 and ground by
backprobing.
•
Voltage should be 0.5 volt or less.
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage normal?
YES : Go to Step 17.
NO : Go to Step 14.
STEP 14. Check the ground voltage at PCM connector C-40
by backprobing.
(1) Do not disconnect connector C-40.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 57 and ground by
backprobing.
•
Voltage should be 0.5 volt or less.
(4) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the voltage normal?
YES : Go to Step 15.
NO : Go to Step 16.
AC001831AD
CONNECTOR: B-05
<2.4L ENGINE>
<3.0L ENGINE>
AC001790
B-05 CONNECTOR
HARNESS SIDE VIEW
AD
AC004197
PCM
AD
CONNECTOR: C-40
AC001791
C-40 CONNECTOR
HARNESS SIDE VIEW
AE
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