Mitsubishi 380. Manual - part 340

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-28

STEP 11. Check Engine ECU connector B-21 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Are the connector and terminals in good condition?

YES : Install the air bag module (driver’s side). (Refer to 

GROUP 52B, Air Bag Modules and Clock Spring 

P.52B-237

). Then go to Step 17.

NO :  Repair the faulty connector if possible, or as 

recommended, replace complete wiring harness. 
(Refer to GROUP 00E, Harness Connector Inspection 

P.00E-2

). Install the air bag module (driver’s side). 

(Refer to GROUP 52B, Air Bag Modules and Clock 
Spring 

P.52B-237

). Then go to Step 18.

10DB133A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-29

STEP 12. Check Engine ECU connector B-21, intermediate 
connector C-29, auto-cruise control switch connector 
C-302 and clock spring connectors C-303 and C-306 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.

16DB400A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

17DB041A

C-29

CONNECTOR: C-29

C-29 MALE SIDE CONNECTOR

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-30

Q: Are the connectors and terminals in good condition?

YES : Go to Step 13.
NO :  Repair the faulty connector if possible, or as 

recommended, replace complete wiring harness. 
(Refer to GROUP 00E, Harness Connector Inspection 

P.00E-2

). Install the air bag module (driver’s side). 

(Refer to GROUP 52B, Air Bag Modules and Clock 
Spring 

P.52B-237

). Then go to Step 18.

STEP 13. Check the harness wire between Engine ECU 
connector B-21 terminal 15 and auto-cruise control switch 
connector C-302 terminal 3 for damage.
Q: Are the harness wires in good condition?

YES : Go to Step 14.
NO :  Repair the damaged harness wire if possible, or 

replace complete wiring harness and install the air 
bag module (driver’s side). (Refer to GROUP 52B, Air 
Bag Modules and Clock Spring 

P.52B-237

). Then go 

to Step 18.

17DB040A

C-306 HARNESS

CONNECTOR:

COMPONENT SIDE

C-303 HARNESS

CONNECTOR:

COMPONENT SIDE

C-302 HARNESS

CONNECTOR:

COMPONENT SIDE

C-302 (Y)

C-303 (GR)

C-306

CONNECTORS: C-302, C-303, C-306

CLOCK

SPRING

10DB133A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

17DB042A

C-302 (Y)

CONNECTOR: C-302

C-302 HARNESS

CONNECTOR:

COMPONENT SIDE

CLOCK

SPRING

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-31

STEP 14. Check the clock spring.
Refer to GROUP 52B, Air Bag Modules and Clock Spring 

P.52B-244

.

Q: Is the clock spring in good condition?

YES : 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.00-14

). Install 

the air bag module (driver’s side). (Refer to GROUP 
52B, Air Bag Modules and Clock Spring 

P.52B-237

). 

Then go to Step 18.

NO :  Replace the clock spring and install the air bag 

module (driver’s side). (Refer to GROUP 52B, Air Bag 
Modules and Clock Spring 

P.52B-237

). Then go to 

Step 18.

STEP 15. Check auto-cruise control switch connector 
C-302 for loose, corroded or damaged terminals, or 
terminals pushed back in the connector.
Q: Are the connector and terminals in good condition?

YES : Go to Step 16.
NO :  Repair the faulty connector if possible, or as 

recommended, replace complete wiring harness or 
module. (Refer to GROUP 00E, Harness Connector 
Inspection 

P.00E-2

). Install the air bag module 

(driver’s side). (Refer to GROUP 52B, Air Bag 
Modules and Clock Spring 

P.52B-237

). Then go to 

Step 18.

17DB042A

C-302 (Y)

CONNECTOR: C-302

C-302 HARNESS

CONNECTOR:

COMPONENT SIDE

CLOCK

SPRING