Mitsubishi Grandis. Manual - part 526

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-202

intermediate connector, and measure at the 
wiring harness side.

CAUTION

When measuring the resistance, disconnect the 
negative battery terminal. For details refer to 

P.54D-8

.

(2) Ensure that the negative battery terminal is 

disconnected.

(3) Resistance between A-16 intermediate connector 

terminal No.6 and body earth

OK: 1 k

Ω or more

CAUTION

Strictly observe the specified wiring harness 
repair procedure. For details refer to 

P.54D-8

.

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Follow diagnostic item 17, 

Diagnose CAN bus lines thoroughly. Refer 
to 

P.54D-452

.

NO : 

<less than 1 

Ω> Repair the wiring harness 

between the intermediate connector and the 
engine-ECU <M/T> or engine-A/T-ECU 
<A/T> connector.

STEP 50. Connector check: A-03 ABS-ECU 
connector

CAUTION

The strand end of the twist wire should be within 
10 cm from the connector. For details refer to 

P.54D-8

.

Q: Is the check result normal?

YES : 

Go to Step 51 .

NO : 

Repair the defective connector.

STEP 51. Resistance measurement at the A-07 
joint connector (CAN1).
NOTE: When checking A-07 joint connector (CAN1), 
disassemble and check the engine compartment 
relay box by referring to 

P.54D-616

.

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54D-8

.

CAUTION

The test wiring harness should be used. For 
details refer to 

P.54D-8

.

(1) Disconnect the joint connector (CAN1) and the 

ABS-ECU connector, and measure at the wiring 
harness side.

CAUTION

When measuring the resistance, disconnect the 
negative battery terminal. For details refer to 

P.54D-8

.

(2) Ensure that the negative battery terminal is 

AC209364

AC209364

AC209364MB

Male side: A-16

Test
harness

AC310401

Connector: A-03 <LHD>

Harness side

AK

AC310401

Connector: A-03 <LHD>

Harness side

AK

AC302572AD

Connector: A-07

Harness side

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-203

disconnected.

(3) Resistance between A-07 joint connector (CAN1) 

terminal No.5 and body earth

OK: 1 k

Ω or more

CAUTION

Strictly observe the specified wiring harness 
repair procedure. For details refer to 

P.54D-8

.

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Follow diagnostic item 17, 

Diagnose CAN bus lines thoroughly. Refer 
to 

P.54D-452

.

NO : 

<less than 1 k

Ω> Repair the wiring harness 

between the joint connector (CAN1) and the 
ABS-ECU connector.

STEP 52. Resistance measurement at the A-07 
joint connector (CAN1).
NOTE: When checking A-07 joint connector (CAN1), 
disassemble and check the engine compartment 
relay box by referring to 

P.54D-616

.

CAUTION

A digital multimeter should be used. For details 
refer to 

P.54D-8

.

CAUTION

The test wiring harness should be used. For 
details refer to 

P.54D-8

.

(1) Disconnect the joint connector (CAN1) and the 

intermediate connector, and measure at the 
wiring harness side.

CAUTION

When measuring the resistance, disconnect the 
negative battery terminal. For details refer to 

P.54D-8

.

(2) Ensure that the negative battery terminal is 

AC209364

Harness side: A-07

AC209364MA

Test harness

AC302572AD

Connector: A-07

Harness side

AC310613

AD

Connector: C-125 <LHD>

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-204

disconnected.

(3) Resistance between A-07 joint connector (CAN1) 

terminal No.4 and body earth

OK: 1 k

Ω or more

CAUTION

Strictly observe the specified wiring harness 
repair procedure. For details refer to 

P.54D-8

.

Q: Is the check result normal?

YES : 

<1 k

Ω or more> Follow diagnostic item 17, 

Diagnose CAN bus lines thoroughly. Refer 
to 

P.54D-452

.

NO : 

<less than 1 k

Ω> Repair the wiring harness 

between the joint connector (CAN1) and the 
intermediate connector.

AC209364

Harness side: A-07

AC209364MC

Test
harness

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54D-205

Diagnostic Item 6: Diagnose the CAN bus lines for short to earth <LH drive vehicles with ASC>

CAUTION

When servicing a CAN bus line, earth yourself by 
touching a metal object such as an unpainted 
water pipe. If you fail to do, a component 
connected to the CAN bus line may be broken.

A/C-ECU

CENTER DISPLAY

COMBINATION
METER

DIAGNOSIS
CONNECTOR

ASC-ECU

ENGINE-ECU<M/T>
ENGINE·A/T-ECU<A/T>

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Gray     R : Red     P : Pink     V : Violet