Mitsubishi 380. Manual - part 700

 

  Index      Mitsubishi     Mitsubishi 380 - service repair manual 2005 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  698  699  700  701   ..

 

 

Mitsubishi 380. Manual - part 700

 

 

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-210

wiring harness between A/T- ECU connector and 
ABS-ECU connector.

STEP 26. Check the CAN_H line inside the ABS-ECU for 
short to ground. Measure the resistance at ABS-ECU 
connector A-02.

CAUTION

A digital multimeter should be used. For details refer to 

P.54C-4

.

CAUTION

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

P.54C-4

.

(1) Disconnect ABS-ECU connector A-02.

16DB402A

A-02 (GR)

CONNECTOR: A-02 

A-02 HARNESS CONNECTOR:

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-211

(2) Measure the resistance at connector A-02, and use special 

tool Inspection Check Harness (MB991219) to probe the 
wiring harness-side connector.

NOTE: The special tool (Inspection test harness) 
MB991219 for connector pin contact pressure should be 
used. The test probe should never be forcibly inserted, as it 
may cause a defective contact.

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

CAUTION

Disconnect the negative battery terminal. For details refer 
to 

P.54C-4

.

(4) Disconnect the negative battery terminal.
(5) Measure the resistance between connector A-02 terminal 

25 (using inspection test harness MB991219) and body 
ground.

OK: 1 k

 or more

Q: Does the resistance measure 1 k

 or more?

YES : If the resistance measures 1 k

Ω or more, diagnose 

CAN bus lines thoroughly by referring to 

P.54C-323

.

NO :  If the resistance measures less than 1 k

Ω, replace the 

ABS-ECU.

16DB492A

TEST HARNESS

   (MB991219)

CONNECTOR:  A-02

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-212

STEP 27. Check the CAN_H line (communication line only) 
between the ENGINE- ECU connector and A/T-ECU 
connector for short to ground. Measure the resistance at 
ENGINE- ECU connector B-21.

NOTE: When diagnosing CAN BUS on vehicles with 

manual transmission (M/T) disregard A/T-ECU and it’s wir-
ing circuits and measure between ABS-ECU and 
ENGINE-ECU only.

CAUTION

A digital multimeter should be used. For details refer to 

P.54C-4

.

CAUTION

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

P.54C-4

.

(1) Disconnect ENGINE- ECU connector B-21 and A/T-ECU 

connector B-19, and measure the resistance at the harness 
side of ENGINE- ECU connector B-21.

(2) Turn the ignition switch to the "LOCK" (OFF) position.

CAUTION

Disconnect the negative battery terminal. For details refer 
to 

P.54C-4

.

(3) Disconnect the negative battery terminal.

16DB480A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

A/T

CONTROL

UNIT

16DB400A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

DIAGNOSIS

CONTROLLER AREA NETWORK (CAN)

54C-213

(4) Measure the resistance between ENGINE- ECU connector 

terminal 64 and body ground.

OK: 1 k

 or more

CAUTION

Strictly observe the specified wiring harness repair proce-
dure. For details refer to 

P.54C-5

.

Q: Does the resistance measure 1 k

 or more?

YES : If the resistance measures 1 k

Ω or more, go to Step 

28   .

NO :  If the resistance measures less than 1 k

Ω, repair the 

wiring harness between ENGINE- ECU B-21 
connector and A/T-ECU B-19 connector.

STEP 28. Check the CAN_H line inside the A/T-ECU for 
short to ground. Measure the resistance at A/T-ECU 
connector B-19.

NOTE: When diagnosing CAN BUS on vehicles with 

manual transmission (M/T) disregard A/T-ECU and it’s wir-
ing circuits and measure between ABS-ECU and 
ENGINE-ECU only.

CAUTION

A digital multimeter should be used. For details refer to 

P.54C-4

.

CAUTION

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

P.54C-4

.

(1) Disconnect A/T-ECU connector B-19.

16DB493A

HARNESS SIDE: B-21

TEST
HARNESS

16DB480A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

A/T

CONTROL

UNIT

 

 

 

 

 

 

 

Content   ..  698  699  700  701   ..