Mitsubishi Grandis. Manual - part 796

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-25

STEP 8. Check the harness between stop lamp 
switch connector C-127 terminal No.2 and fuse 
No.11 at the relay box in engine compartment for 
damage.

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Repair the damaged harness wire. Then go 
to Step 23.

STEP 9. Check the fuse No.11 at the relay box in 
engine compartment.

Q: Is the check result normal?

YES : 

Go to Step 10.

NO : 

Check the stop lamp system harness and 
replace the fuse. Then go to Step 23.

STEP 10. Check the stop lamp switch.
(1) Remove the stop lamp switch (Refer to GROUP 

35A, Brake Pedal 

P.35A-12

).

(2) Connect an ohmmeter to the stop lamp switch 

between terminals 1 and 2.

(3) Check for continuity between the terminals when 

the plunger of the stop lamp switch is pushed in 
and when it is released.

OK: The stop lamp switch is operating 
properly if the circuit is open between 
terminals 1 and 2 when the plunger is 
pushed in to a depth of within 4.0 mm 
from the outer case edge surface, and if 
the resistance value is less than 2 ohms 
between terminals 1 and 2 when it is 
released.

Q: Is the check result normal?

YES : 

Install the stop lamp switch (Refer to 

GROUP 35A, Brake Pedal 

P.35A-12

). Then 

go to Step 11.

NO : 

Replace the stop lamp switch (Refer to 
GROUP 35A, Brake Pedal 

P.35A-12

). Then 

go to Step 23.

AC311913AD

Connector: C-127

C-127

AC311951AB

Fuse No.11
(housing colour: blue)

AC311951AB

Fuse No.11
(housing colour: blue)

AC311942 AB

C-127 Stop lamp 
switch connector

AC311961

Continuity

No continuity

4.0 mm

AB

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-26

STEP 11. Connectors check: C-127 stop lamp 
switch connector, C-32 J/C (7), C-18 intermediate 
connector

Q: Is the check result normal?

YES : 

Go to Step 12.

NO : 

Repair or replace the damaged 
components. Then go to Step 23.

STEP 12. Check the harness between stop lamp 
switch connector C-127 terminal No.1 and 
intermediate connector C-18 terminal No.4.

Q: Is the check result normal?

YES : 

Go to Step 13.

NO : 

Repair the damaged harness wire. Then go 
to Step 23.

STEP 13. MUT-III data list

Item 05: Stop lamp switch (Refer to data list 
reference table 

P.17-50

).

Q: Is the check result normal?

YES : 

Go to Step 22.

NO : 

Replace the engine-ECU <M/T> or 
engine-A/T-ECU <A/T> (Refer to GROUP 
13A, Engine-ECU and Engine-A/T-ECU 

P.13A-399

). Then go to Step 23   .

STEP 14. MUT-III data list

Item 06: Brake switch (Refer to data list reference 
table 

P.17-50

).

Q: Is the check result normal?

YES : 

Go to Step 22.

NO : 

Go to Step 15.

AC311913AD

Connector: C-127

C-127

AC311913AC

Connector: C-32

C-32

AC311914

C-18

Connector: C-18

AB

AC311913AD

Connector: C-127

C-127

AC311914

C-18

Connector: C-18

AB

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-27

STEP 15. Measure the voltage at engine-ECU 
connector C-111 <M/T> or engine-A/T-ECU 
connector C-111 <A/T>.
(1) Turn the ignition switch to the "ON" position.

(2) Measure the voltage between engine-ECU 

connector C-111 <M/T> terminal No.54 or 
engine-A/T-ECU connector C-111 <A/T> terminal 
No.54 and earth.

OK:

Brake pedal depressed: System voltage
Brake pedal not depressed: 1 V or less

(3) Turn the ignition switch to the "LOCK" (OFF) 

position.

Q: Is the check result normal?

YES : 

Go to Step 21.

NO : 

Go to Step 16.

STEP 16. Check the stop lamp switch.
(1) Remove the stop lamp switch (Refer to GROUP 

35A, Brake Pedal 

P.35A-12

).

(2) Connect an ohmmeter to the stop lamp switch 

between terminals 3 and 4.

(3) Check for continuity between the terminals when 

the plunger of the stop lamp switch is pushed in 
and when it is released.

OK: The stop lamp switch is operating 
properly if the circuit is open between 
terminals 3 and 4 when the plunger is 
released, and if resistance value is less 
than 2 ohms between terminals 3 and 4 
when the plunger is pushed in to a depth 
of within 4.5 mm from the outer case 
edge surface.

Q: Is the check result normal?

YES : 

Install the stop lamp switch (Refer to 

GROUP 35A, Brake Pedal 

P.35A-12

). Then 

go to Step 17.

NO : 

Replace the stop lamp switch (Refer to 
GROUP 35A, Brake Pedal 

P.35A-12

). Then 

go to Step 23.

AC311908AB

Connector: C-111

C-111 (GR)

AC304692AE

C-111 harness 
connector: 
harness side

AC311943AB

C-127 Stop lamp 
switch connector

AC311961

Continuity

No continuity

4.5 mm

AC

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-28

STEP 17. Connectors check: C-111 engine-ECU 
connector <M/T> or C-111 engine-A/T-ECU 
connector <A/T>, C-17 intermediate connector, 
C-127 stop lamp switch connector

Q: Is the check result normal?

YES : 

Go to Step 18.

NO : 

Repair or replace the damaged 
components. Then go to Step 23.

STEP 18. Check the harness between 
engine-ECU connector C-111 <M/T> terminal 
No.54 or engine-A/T-ECU connector C-111 <A/T> 
terminal No.54 and stop lamp switch connector 
C-127 terminal No.4.

Q: Is the check result normal?

YES : 

Go to Step 19.

NO : 

Repair the damaged harness wire. Then go 
to Step 23.

STEP 19. Connector check: C-127 stop lamp 
switch connector

Q: Is the check result normal?

YES : 

Go to Step 20.

NO : 

Repair or replace the damaged 
components. Then go to Step 23.

AC311908AB

Connector: C-111

C-111 (GR)

AC311914AC

C-17

Connector: C-17

AC311913AD

Connector: C-127

C-127

AC311908AB

Connector: C-111

C-111 (GR)

AC311913AD

Connector: C-127

C-127

AC311913AD

Connector: C-127

C-127