Mitsubishi Grandis. Manual — part 800

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-41

• Malfunction of the connector.

• Malfunction of the harness.

• Malfunction of the engine-ECU.

DIAGNOSIS

STEP 1. Check the clutch switch.

(1) Disconnect clutch switch connector C-131.

(2) Measure the continuity between the terminals.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Replace the clutch switch (Refer to GROUP
21A, Clutch Pedal

P.21A-5

). Then check

that the malfunction is eliminated.

STEP 2. Measure the voltage at engine-ECU
connector C-111.
(1) Turn the ignition switch to the "ON" position.

(2) Measure the voltage between engine-ECU

connector C-111 terminal No.40 and earth.

OK:

Clutch pedal depressed: 0.5 V or less
Clutch pedal not depressed: System

voltage

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

position.

Q: Is the check result normal?

Measurement
condition

Terminal
connector of
tester

Specified
condition

When clutch
pedal is
depressed.

1

− 2

Less than 2
ohms

When clutch
pedal is not
depressed.

1

− 2

Open circuit

AC311913AG

C-131

Connector: C-131
<L.H. drive vehicles>

AC311916AG

C-131

Connector: C-131
<R.H. drive vehicles>

2

1

AC203078AC

C-131 harness
connector:
clutch switch side

AC311284AE

Connector: C-111

<L.H. drive vehicles>

<R.H. drive vehicles>

C-111 (GR)

C-111 (GR)

AC309094AC

C-113 harness
connector:
harness side

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-42

YES :

Check that the malfunction is eliminated. If

the malfunction is eliminated, replace the
engine-ECU (Refer to GROUP 13A,
Engine-ECU and Engine-A/T-ECU

P.13A-399

). Then check that the

malfunction is eliminated.

NO :

Go to Step 3.

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-43

STEP 3. Connectors check: C-131 clutch switch
connector, C-111 engine-ECU connector, C-17
intermediate connector

AUTO-CRUISE CONTROL

ENGINE AND EMISSION CONTROL

17-44

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Repair or replace the faulty connector. Then
check that the malfunction is eliminated.

AC311914AE

C-17

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

AC311915AF

C-17

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

AC311284AE

Connector: C-111

<L.H. drive vehicles>

<R.H. drive vehicles>

C-111 (GR)

C-111 (GR)

AC311913AG

C-131

Connector: C-131
<L.H. drive vehicles>

AC311916AG

C-131

Connector: C-131
<R.H. drive vehicles>