Mitsubishi L200. Manual — part 455

TROUBLESHOOTING

ACTIVE STABILITY & TRACTION CONTROL SYSTEM (ASTC)

35C-76

STEP 8. Resistance measurement at the A-48
ASTC-ECU connector and C-145 rear differential
lock-ECU connector
(1) Disconnect the A-48 ASC-ECU connector.
(2) Disconnect the C-145 rear differential lock-ECU

connector.

(3) Measure the resistance between the A-48 ASTC-

ECU connector terminal No.33 and C-145 rear
differential lock-ECU connector terminal No.10.

OK: Continuity exists (2

Ω or less)

Q: Is the check result normal?

YES :

Go to Step 9.

NO :

Repair the wiring harness. Then go to Step
15.

STEP 9. Resistance measurement at the C-145
rear differential lock-ECU connector
(1) Disconnect the C-145 rear differential lock-ECU

connector and measure the resistance at the
harness side.

(2) Disconnect the A-48 ASTC-ECU connector and

F-13-1 rear differential lock detection switch
connector.

(3) Measure the resistance between the C-145 rear

differential lock-ECU connector terminal No.8 and
body earth.

OK: No continuity

Q: Is the check result normal?

YES :

Go to Step 10.

NO :

Repair the wiring harness. Then go to Step
15.

STEP 10. Resistance measurement at the A-48
ASTC-ECU connector and C-145 rear differential
lock-ECU connector
(1) Disconnect the A-48 ASTC-ECU connector.
(2) Disconnect the C-145 rear differential lock-ECU

connector.

(3) Measure the resistance between the A-48 ASTC-

ECU connector terminal No.30 and C-145 rear
differential lock-ECU connector terminal No.8.

OK: Continuity exists (2

Ω or less)

Q: Is the check result normal?

YES :

Go to Step 11.

NO :

Repair the wiring harness. Then go to Step
15.

STEP 11. Resistance measurement at the A-48
ASTC-ECU connector and F-13-1 rear differential
lock detection switch connector
(1) Disconnect the A-48 ASTC-ECU connector.

(2) Disconnect the F-13-1 rear differential detection

switch connector.

(3) Measure the resistance between the A-48 ASTC-

ECU connector terminal No.30 and F-13-1 rear
differential detection switch connector terminal
No.2.

OK: Continuity exists (2

Ω or less)

Q: Is the check result normal?

YES :

Go to Step 12.

NO :

Repair the wiring harness. Then go to Step
15.

STEP 12. Resistance measurement at the F-13-1
rear differential lock detection switch connector
(1) Disconnect the F-13-1 rear differential lock

detection switch connector and measure the
resistance at the harness side.

(2) Measure the resistance between the F-13-1 rear

differential lock detection switch connector
terminal No.1 and body earth.

OK: Continuity exists (2

Ω or less)

Q: Is the check result normal?

YES :

Go to Step 13.

NO :

Repair the wiring harness. Then go to Step
15.

STEP 13. Check whether the diagnosis code is
reset.
(1) Turn the ignition switch to the "ON" position.
(2) Erase the diagnosis code.
(3) Turn the ignition switch to the "LOCK" (OFF)

position.

(4) Turn the ignition switch to the "ON" position.
(5) Start the engine.
(6) Turn the rear differential lock switch to the "ON"

position.

(7) Drive the vehicle more than 10 seconds at the

speed exceeds 10 km/h.

(8) Check if the diagnosis code is set.

Q: Is code No.C1292 set?

YES :

Replace the Rear differential lock-ECU

(Refer to GROUP 27

− Rear differential

lock-ECU .). Then go to Step 14.

NO :

Intermittent malfunction (Refer to GROUP
00

− How to Cope with Intermittent

Malfunctions .).

STEP 14. Check whether the diagnosis code is
reset.
(1) Turn the ignition switch to the "ON" position.
(2) Erase the diagnosis code.
(3) Turn the ignition switch to the "LOCK" (OFF)

TROUBLESHOOTING

ACTIVE STABILITY & TRACTION CONTROL SYSTEM (ASTC)

35C-77

position.

(4) Turn the ignition switch to the "ON" position.
(5) Start the engine.
(6) Turn the rear differential lock switch to the "ON"

position.

(7) Drive the vehicle more than 10 seconds at the

speed exceeds 10 km/h.

(8) Check if the diagnosis code is set.

Q: Is code No.C1292 set?

YES :

Replace the hydraulic unit assembly

(integrated with ASTC-ECU) (Refer to

P.35C-140

.). Then go to Step 15.

NO :

This diagnosis is complete.

STEP 15. Check whether the diagnosis code is
reset.
(1) Turn the ignition switch to the "ON" position.
(2) Erase the diagnosis code.
(3) Turn the ignition switch to the "LOCK" (OFF)

position.

(4) Turn the ignition switch to the "ON" position.
(5) Start the engine.
(6) Turn the rear differential lock switch to the "ON"

position.

(7) Drive the vehicle more than 10 seconds at the

speed exceeds 10 km/h.

(8) Check if the diagnosis code is set.

Q: Is code No.C1292 set?

YES :

Return to Step 1.

NO :

This diagnosis is complete.

TROUBLESHOOTING

ACTIVE STABILITY & TRACTION CONTROL SYSTEM (ASTC)

35C-78

Code No.C1340: Stop lamp switch circuit malfunction

Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple SI : Silver

FUSIBLE
LINK

23

RELAY
BOX

STOP LAMP
SWITCH

HIGH-
MOUNTED
STOP
LAMP

REAR
COMBINATION
LAMP
(STOP: LH)

REAR
COMBINATION
LAMP
(STOP: RH)

NOTE

: WITH REAR BODY
: WITHOUT REAR BODY

AC809288

Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple SI : Silver

:

ACB00848

: LHD
: RHD

ASTC-ECU

AC800980

AG

Connector: A-48

(B)

AC600687CC

Connector: C-114 <LHD>

Harness side
connector

4

1

2

3

AC600623

Harness side
connector

CJ

Connector: C-114 <RHD>

4

1

2

3

AC600687CD

Connectors: C-10, C-30 <LHD>

C-10

C-30

C-10

C-30

6 7

1 2

11

8 9 10

3 4

12

5

AC600623DD

Connector: C-10, C-13 <RHD>

C-10

C-13

6 7

1 2

11

8 9 10

3 4

12

5

C-10

AC600688

Connector: C-13 <LHD>

BS

AC600635BH

Connector: C-30 <RHD>

AC809345 AF

Connectors: F-02, F-03, F-04, F-07, F-19, F-23

F-07 (B)

F-03 (B)

F-02 (B)

<Vehicles without
rear body>

F-04 (B)

F-19

F-23

2 1

3

1

2

6

5

4

F-03
Harness connector

F-07

F-19, F-23
Harness connector

2
5

6

3

4

1

F-02, F-04
Harness connector

TROUBLESHOOTING

ACTIVE STABILITY & TRACTION CONTROL SYSTEM (ASTC)

35C-79

CAUTION

If there is any problem in the CAN bus lines, an
incorrect diagnosis code may be set. Diagnose
the CAN bus lines before the diagnosis codes
(Refer to GROUP 54C

− CAN Bus Diagnostics

Table .).
OPERATION

• ASTC-ECU monitors whether the stop lamp

switch is "ON" or "OFF."

DIAGNOSIS CODE SET CONDITIONS
This diagnosis code is set in the following case.