Mitsubishi Grandis. Manual - part 794

 

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Mitsubishi Grandis. Manual - part 794

 

 

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-17

Q: Is the check result normal?

YES : 

Go to Step 13.

NO : 

Repair or replace the faulty connector, and 
install the air bag module (driver’s side) 
(Refer to GROUP 52B,  Driver’s, Front 
Passenger’s Air Bag Module(s) and Clock 
Spring 

P.52B-225

). Then go to Step 18.

AC311914AE

C-17

Connector: C-17 
<L.H. drive vehicles>

AC311915AF

C-17

Connector: C-17 
<R.H. drive vehicles>

AC311284AD

Connector: C-114

<L.H. drive vehicles>

<R.H. drive vehicles>

C-114 (GR)

C-114 (GR)

AC311366

C-304

C-305

C-310

C-311

Connectors: C-304, C-305, C-310, C-311

<L.H. drive vehicles>

<R.H. drive vehicles>

C-311

C-310 (B)

C-310 (B)

C-311

AB

Clock
spring

Clock
spring

C-305 (Y)

C-304 (B)

C-305 (Y)

C-304 (B)

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-18

STEP 13. Check the harness between 
engine-ECU connector C-114 <M/T> terminal 
No.146 or engine-A/T-ECU connector C-114 
<A/T> terminal No.146 and the auto-cruise 
control switch connector C-305 terminal No.3.

Q: Is the check result normal?

AC311284AD

Connector: C-114

<L.H. drive vehicles>

<R.H. drive vehicles>

C-114 (GR)

C-114 (GR)

AC311366

Connector: C-305

<L.H. drive vehicles>

<R.H. drive vehicles>

C-305 (Y)

C-305 (Y)

AC

Clock
spring

Clock
spring

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-19

YES : 

Go to Step 14.

NO : 

Repair the damaged harness wire, and 
install the air bag module (driver’s side) 
(Refer to GROUP 52B,  Driver’s, Front 
Passenger’s Air Bag Module(s) and Clock 
Spring 

P.52B-225

). Then go to Step 18.

STEP 14. Check the clock spring.

Refer to GROUP 52B,  Driver’s, Front Passenger’s 
Air Bag Module(s) and Clock Spring 

P.52B-225

.

Q: Is the check result normal?

YES : 

It can be assumed that this malfunction is 

intermittent, and install the air bag module 
(driver’s side) (Refer to GROUP 52B,  
Driver’s, Front Passenger’s Air Bag 
Module(s) and Clock Spring 

P.52B-225

). 

Then go to Step 18.

NO : 

Replace the clock spring and install the air 
bag module (driver’s side) (Refer to GROUP 
52B,  Driver’s, Front Passenger’s Air Bag 
Module(s) and Clock Spring 

P.52B-225

). 

Then go to Step 18.

STEP 15. Connector check: C-305 auto-cruise 
control switch connector

Q: Is the check result normal?

YES : 

Go to Step 16.

NO : 

Repair or replace the faulty connector, and 
install the air bag module (driver’s side) 
(Refer to GROUP 52B,  Driver’s, Front 
Passenger’s Air Bag Module(s) and Clock 
Spring 

P.52B-225

). Then go to Step 18.

STEP 16. Check the auto-cruise control switch.

 Refer to 

P.17-55

.

Q: Is the check result normal?

YES : 

Install the air bag module (driver’s side) 

(Refer to GROUP 52B,  Driver’s, Front 
Passenger’s Air Bag Module(s) and Clock 
Spring 

P.52B-225

). Then go to Step 17.

NO : 

Replace the auto-cruise control switch 
(Refer to 

P.17-56

), and install the air bag 

module (driver’s side) (Refer to GROUP 
52B,  Driver’s, Front Passenger’s Air Bag 
Module(s) and Clock Spring 

P.52B-225

). 

Then go to Step 18.

AC311366

Connector: C-305

<L.H. drive vehicles>

<R.H. drive vehicles>

C-305 (Y)

C-305 (Y)

AC

Clock
spring

Clock
spring

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-20

STEP 17. Check the MUT-III diagnosis code 
No.15.

Q: Is the MUT-III diagnosis code No.15 output?

YES : 

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 18   .

NO : 

It can be assumed that this malfunction is 
intermittent.

STEP 18. Check the MUT-III diagnosis code 
No.15.

Q: Is the MUT-III diagnosis code No.15 output?

YES : 

Return to Step 1.

NO : 

The procedure is complete.

Code No.21 Cancel Latch Signal System

DIAGNOSIS CODE SET CONDITIONS

The engine-ECU <M/T> or engine-A/T-ECU <A/T> 
communicates cancellation retention information 
between the two microprocessors. This diagnosis 
code is set when cancellation retention information 
contains inconsistency.

POSSIBLE CAUSES

• Malfunction of the engine-ECU <M/T>.

• Malfunction of the engine-A/T-ECU <A/T>.

DIAGNOSIS

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 check that 

diagnosis code  21 is not set.

 

 

 

 

 

 

 

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