Mitsubishi Grandis. Manual — part 107

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-425

DIAGNOSTIC PROCEDURE

Step 1. Connector check: B-110 back-up lamp
switch connector and C-220 ETACS-ECU
connector

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Repair the defective connector.

Step 2. Check the back-up lamp switch
Check the back-up lamp switch (Refer to GROUP
22B

− Transmission

P.22B-17

).

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Replace the inhibitor switch.

Step 3. Voltage measurement at the C-220
ETACS-ECU connector.

(1) Disconnect the connector, and measure at the

wiring harness side.

(2) Ignition switch: ON
(3) Shift position: R position

(4) Voltage between C-220 ETACS-ECU connector

terminal No.39 and body earth

OK: System voltage

Q: Is the check result normal?

YES :

Replace the ETACS-ECU.

NO :

Go to Step 4.

AC312663

Connector: B-110 <LHD>

AB

Harness side

AC312667

Connector: B-110 <RHD>

AB

Harness side

AC312037

Connector: C-220

Junction block (Rear view)

AC

<LHD>

Harness side

AC312047

Connector: C-220

Junction block (Rear view)

AC

<RHD>

Harness side

AC312037

Connector: C-220

Junction block (Rear view)

AC

<LHD>

Harness side

AC312047

Connector: C-220

Junction block (Rear view)

AC

<RHD>

Harness side

AC312731

AC312731AD

Connector C-220
(Harness side)

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-426

Step 4. Voltage measurement at the B-110
back-up lamp switch connector.

(1) Disconnect the connector, and measure at the

wiring harness side.

(2) Ignition switch: ON

(3) Voltage between B-110 back-up lamp switch

connector terminal No.2 and body earth

OK: System voltage

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Go to Step 6.

AC312663

Connector: B-110 <LHD>

AB

Harness side

AC312667

Connector: B-110 <RHD>

AB

Harness side

AC312731AE

Connector B-110
(Harness side)

1

2

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-427

Step 5. Check the wiring harness between B-110
back-up lamp switch connector terminal No.1
and C-220 ETACS-ECU connector terminal No.39.

NOTE:

Prior to the wiring harness inspection, check
intermediate connector C-18, and repair if necessary.

• Check the input line for open circuit.

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Repair the wiring harness.

AC312663

Connector: B-110 <LHD>

AB

Harness side

AC312667

Connector: B-110 <RHD>

AB

Harness side

AC312037

Connector: C-220

Junction block (Rear view)

AC

<LHD>

Harness side

AC312047

Connector: C-220

Junction block (Rear view)

AC

<RHD>

Harness side

AC312033

AD

Connector: C-18 <LHD>

AC312041AB

Connector: C-18 <RHD>

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-428

Step 6. Check the wiring harness between B-110
back-up lamp switch connector terminal No.2
and the ignition switch (IG1).

NOTE:

AC312663

Connector: B-110 <LHD>

AB

Harness side

AC312667

Connector: B-110 <RHD>

AB

Harness side