Mitsubishi Galant. Manual — part 396

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-51

STEP 6. 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

P.00E-2

.

STEP 7. 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 12.
NO : Go to Step 8.

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-52

STEP 8. 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 9.
NO : Go to Step 10.

STEP 9. 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

P.00E-2

.

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-53

STEP 10. Check connectors B-05 at throttle position
sensor and C-40 at PCM for damage.
Q: Are the harness connectors in good condition?

YES : Go to Step 11.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

.

STEP 11. 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 5.
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-54

STEP 12. Check connector B-05 at throttle position sensor
for damage.
Q: Is the connector in good condition?

YES : Go to Step 13.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

.

STEP 13. Check the throttle position sensor.
(1) Disconnect connector B-05 and measure at the sensor

side.

(2) Measure the resistance between connector terminal 1 and

4.

Standard value: 3.5

−−−−

6.5 k

Ω

Ω

Ω

Ω

(3) Measure resistance between the throttle position sensor

side connector terminal 1 and 3.

(4) Move the throttle valve from the idle position to full-open

position.

•

Resistance should change smoothly in proportion to
opening angle of the throttle valve.

Q: Is the resistance normal?

YES : Go to Step 14.
NO : Replace the throttle position sensor. Refer to GROUP

13A <2.4L Engine>, Throttle Body Assembly

P.13A-

451

or 13B <3.0L Engine>, Throttle Body Assembly

P.13B-528

.

AC001831AD

CONNECTOR: B-05

<2.4L ENGINE>

<3.0L ENGINE>

AC001831AD

CONNECTOR: B-05

<2.4L ENGINE>

<3.0L ENGINE>

ACX02093

HARNESS
CONNECTOR: B-05

AD

ACX02094

HARNESS
CONNECTOR: B-05

AD