Mitsubishi Grandis. Manual — part 933

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-57

STEP 8. Check the harness wire between
TCL/ASC-ECU connector A-04 terminal 41 and
stop lamp switch connector C-127 terminal 1.

NOTE:

After inspecting TCL/ASC-ECU connector A-04,
intermediate connectors C-32 <L.H.drive vehicles>,
C-124 and stop lamp switch connector C-127,
inspect the wire. If any of these connectors is
damaged, repair or replace it. Then go to Step 11.

Q: Is the check result normal?

YES :

Disconnect the connection between the

combination meter and the engine-A/T-ECU
or the engine-ECU, and then go to Step 9.

NO :

Go to Step 11.

AC312621

Oil reservoir

Connector: A-04

AB

A-04

Hydraulic unit
(with built-in TCL/ASC-ECU)

A-04 Harness connector
(harness side)

AC312624AD

Connector: C-127
<L.H.drive vehicles>

C-127

C-127 Harness connector
(harness side)

AC312625AD

Connector: C-127
<R.H.drive vehicles>

C-127

C-127 Harness connector
(harness side)

AC312624

33

22

11

28

17

16

15

14

13

12

25

2324

2627

3

1 2

4 5

21

20

19

18
2930

32

31

7

6

8

10

9

AE

Connectors: C-32, C-124
<L.H.drive vehicles>

C-32

C-32

C-124

C-124

AC312625AE

Connector: C-124
<R.H.drive vehicles>

C-124

C-124

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-58

STEP 9. Check the harness wire between stop
lamp switch connector C-127 terminal 1 and stop
lamp connector G-20 terminal 1 and stop lamp
connector G-08 terminal 1.

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-59

CAUTION

• The lamp circuit contains a diode. If the tester

is connected with polarity reversed, the
measurement resistance may vary.

• The measurement value varies according to

the tester voltage.

NOTE: After inspecting intermediate connectors
C-16, C-32 <L.H.drive vehicles>, G-21, stop lamp
switch connector C-127 and atop lamp connector
G-08 and G-20, inspect the wire. If any of these
connectors is damaged, repair or replace it. Then go
to Step 11.

Q: Is the check result normal?

YES :

Check the combination meter and the

engine-A/T-ECU or the engine-ECU.

NO :

Repair it and then go to Step 10.

AC313603AB

Connectors: C-32, C-16, C-127, G-08, G-20,
G-21 <L.H.drive vehicles>

C-127

C-127 Harness
connector
(harness side)

G-08

G-20

G-21

G-08/G-20
Harness connector

C-32

C-16

G-21

C-32

C-16

AC313604AB

Connectors: C-16, C-127, G-08, G-20, G-21
<R.H.drive vehicles>

C-127

C-127 Harness
connector
(harness side)

G-08

G-20

G-21

G-08/G-20
Harness connector

C-16

G-21

C-16

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-60

STEP 10. Check whether the diagnosis code is
reset.

Check again if the diagnosis code is set.
(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) Check if the diagnosis code is set.
(6) Turn the ignition switch to the "LOCK" (OFF)

position.

Q: Is code No.C1340 set?

YES :

Replace the hydraulic unit (integrated with

TCL/ASC-ECU). Then go to Step 11.

NO :

It can be assumed that this malfunction is
intermittent. Refer to GROUP 00, How to
Use Troubleshooting/Inspection Service
Points

− How to Cope with Intermittent

Malfunction

P.00-5

.

STEP 11. Check whether the diagnosis code is
reset.

Check again if the diagnosis code is set.
(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) Drive the vehicle at 20km/h or more for 6 minutes

or more. (there is no need to drive continuously.)

(6) Stop the vehicle with braking at 40km/h or more.
(7) Check if the diagnosis code is set.
(8) Turn the ignition switch to the "LOCK" (OFF)

position.

Q: Is code No.C1340 set?

YES :

Go to Step 1.

NO :

The procedure is complete.

Code No.C1361: Abnormal pressure sensor characteristics
Code No.C1364: Pressure sensor malfunction

CAUTION

If there is any problem in the CAN bus lines, an
incorrect diagnosis code may be set. Prior to this
diagnosis, diagnose the CAN bus lines.

CAUTION

Whenever the ECU is replaced, ensure that the
CAN bus lines are normal.

OPERATION

The master cylinder pressure sensor is incorporated
in the hydraulic unit. When the brake pedal is
depressed, the sensor detects the fluid pressure in
the master cylinder, and converts it to voltage signal.

AC302297

AC310120

AB

MB991827

16-pin

MB991910

MB991824

AC302297

AC310120

AB

MB991827

16-pin

MB991910

MB991824