Mitsubishi Grandis. Manual - part 899

 

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Mitsubishi Grandis. Manual - part 899

 

 

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-11

STEP 2. Check whether the diagnosis code is 
reset.

CAUTION

Before connecting or disconnecting the MUT-III, 
turn the ignition switch to the "LOCK" (OFF) 
position.
(1) Turn the ignition switch to the "ON" position.
(2) Erase the diagnosis code.
(3) Turn the ignition switch to the "LOCK" (OFF) 

position.

(4) Turn the ignition switch to the "ON" position.
(5) Check if the diagnosis code is set.
(6) Turn the ignition switch to the "LOCK" (OFF) 

position.

Q: Is code No.C1200, C1205, C1210 or C1215 set?

YES : 

Go to Step 3.

NO : 

The procedure is complete.

STEP 3. MUT-III data list

CAUTION

Before connecting or disconnecting the MUT-III, 
turn the ignition switch to the "LOCK" (OFF) 
position.
(1) Connect MUT-III to the 16-pin diagnosis 

connector.

(2) Start the engine.
(3) Set MUT-III to the data reading mode, and check 

the data list items by driving the vehicle.

• Item 01 (Code No.C1200 is set): Front right 

wheel speed sensor

• Item 02 (Code No.C1205 is set): Front left 

wheel speed sensor

• Item 03 (Code No.C1210 is set): Rear right 

wheel speed sensor

• Item 04 (Code No.C1215 is set): Rear left 

wheel speed sensor

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

position.

Q: Does the speedometer indication match the MUT-III 

indication?

YES : 

It can be assumed that this malfunction is 

intermittent. Refer to GROUP 00, How to 
Use Troubleshooting/Inspection Service 
Points 

− How to Cope with Intermittent 

Malfunction 

P.00-5

.

NO : 

Go to Step 4.

AC302297

AC310120

AB

MB991827

16-pin

MB991910

MB991824

AC302297

AC310120

AB

MB991827

16-pin

MB991910

MB991824

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-12

STEP 4. Voltage measurement at ABS-ECU 
connector A-03.

(1) Disconnect the connector A-03, and connect 

special tool ABS Check Harness (MB991974) to 
the wiring harness-side connector.
NOTE: Do not connect special tool ABS Check 
Harness (MB991974) to the ABS-ECU.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between the relevant signal 

and earth terminals in the wheel speed sensor 
circuit and body earth.

OK: less than 1V or less

• Code No.C1200 is set: Between signal 

terminal 5 and body earth, and between earth 
terminal 6 and body earth

• Code No.C1205 is set: Between signal 

terminal 8 and body earth, and between earth 
terminal 9 and body earth

• Code No.C1210 is set: Between signal 

terminal 11 and body earth, and between 
earth terminal 12 and body earth

• Code No.C1215 is set: Between signal 

terminal 2 and body earth, and between earth 
terminal 3 and body earth

Q: Is the check result normal?

YES : 

Go to Step 5.

NO (When the voltage between terminal 5 or 6 

 

and body earth measures more than 1 V) : 

Go to 

Step 6.

NO (When the voltage between terminal 8 or 9 

 

and body earth measures more than 1 V) : 

Go to 

Step 8.

NO (When the voltage between terminal 11 or 12 

 

and body earth measures more than 1 V) : 

Go to 

Step 10.

NO (When the voltage between terminal 2 or 3 

 

and body earth measures more than 1 V) : 

Go to 

Step 12.

AC312620AR

Oil reservoir

Connector: A-03

ABS-ECU

MB991974

Check connector

A-03 Harness connector

A-03

Hydraulic unit
(with built-in ABS-ECU)

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-13

STEP 5. Resistance measurement at ABS-ECU 
connector A-03.

(1) Disconnect the connector A-03, and connect 

special tool ABS Check Harness (MB991974) to 
the wiring harness-side connector.
NOTE: Do not connect special tool ABS Check 
Harness (MB991974) to the ABS-ECU.

(2) Measure the resistance between the relevant 

signal and earth terminals in the wheel speed 
sensor circuit and body earth.

OK: No continuity

• Code No.C1200 is set: Between signal 

terminal 5 and body earth, and between earth 
terminal 6 and body earth

• Code No.C1205 is set: Between signal 

terminal 8 and body earth, and between earth 
terminal 9 and body earth

• Code No.C1210 is set: Between signal 

terminal 11 and body earth, and between 
earth terminal 12 and body earth

• Code No.C1215 is set: Between signal 

terminal 2 and body earth, and between earth 
terminal 3 and body earth

Q: Is the check result normal?

YES : 

Go to Step 15.

NO (Continuity exists between terminal 5 or 
terminal 6 and body earth) : 

Go to Step 6.

NO (Continuity exists between terminal 8 or 
terminal 9 and body earth) : 

Go to Step 8.

NO (Continuity exists between terminal 11 or 
terminal 12 and body earth) : 

Go to Step 10.

NO (Continuity exists between terminal 2 or 
terminal 3 and body earth) : 

Go to Step 12.

AC312620AS

Oil reservoir

Connector: A-03

ABS-ECU

MB991974

Check connector

A-03 Harness connector

A-03

Hydraulic unit
(with built-in ABS-ECU)

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-14

STEP 6. Check ABS-ECU connector A-03 and 
wheel speed sensor <front: RH> connector A-02 
for loose, corroded or damaged terminals, or 
terminals pushed back in the connector.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair or replace the damaged 
component(s). Then go to Step 16.

STEP 7. Check the harness wires between 
ABS-ECU connector A-03 (terminal 5, 6) and 
wheel speed sensor <front: RH> connector A-02 
(terminal 1, 2).

Q: Is the check result normal?

YES : 

Go to Step 14.

NO : 

Repair the wiring harness. Then go to Step 
16.

AC312621

Oil reservoir

Connector: A-03

AC

A-03

Hydraulic unit
(with built-in ABS-ECU)

A-03 Harness connector
(harness side)

AC312616AB

Connector: A-02

A-02 (GR)

A-02 Harness
connector
(harness side)

AC312621

Oil reservoir

Connector: A-03

AC

A-03

Hydraulic unit
(with built-in ABS-ECU)

A-03 Harness connector
(harness side)

AC312616AB

Connector: A-02

A-02 (GR)

A-02 Harness
connector
(harness side)

 

 

 

 

 

 

 

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