Mitsubishi Evolution X. Manual - part 886

REAR AXLE DIAGNOSIS <EXCEPT AYC>

TSB Revision

REAR AXLE

27-5

INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS

INSPECTION PROCEDURE 1: Noise during Wheel Rotation <DRIVESHAFT>

DIAGNOSIS

STEP 1. Check the wheel bearing end play.

AC703428 AB

(1) Remove the caliper assembly, and suspend the caliper 

assembly with a wire and remove the brake disc.

(2) Fit the dial gauge as shown in the diagram and move the 

hub in the axial direction to measure the play.

Limit: 0.05 mm (0.002 inch)

Q: Is the wheel bearing end play within the limit?

YES : Go to step 2.
NO :  Replace the part, then go to Step 4.

STEP 2. Check if the driveshaft is bent.
Q: Is the driveshaft bent?

YES : Replace the part. Then go to Step 3.
NO :  Go to Step 4.

STEP3. Check the driveshaft assembly for wear or 
damage.
Q: Is the driveshaft assembly worn or damaged?

YES : Replace the driveshaft assembly. Then go to Step 4.
NO :  There is no action to be taken.

STEP 4. Retest the system.
Q: Is the abnormal noise eliminated?

YES : The procedure is complete.
NO :  Start over at Step 1.

INSPECTION PROCEDURE 8: Oil Leakage <DIFFERENTIAL>

DIAGNOSIS

STEP 1. Check the cover installation.
Q: Is the cover installed correctly?

YES : Go to Step 2.
NO :  Repair. Then go to Step 4.

STEP 2. Check the oil seal for wear or damage.
Q: Is the oil seal worn or damaged?

YES : Replace the seal. Then go to Step 4.
NO :  Go to Step 3.

REAR AXLE DIAGNOSIS <AYC>

TSB Revision

REAR AXLE

27-6

STEP 3. Check the oil level.

AC102739

6 mm
(0.2 in)

AJ

Upper 
limit

Lower 
limit

Gear oil

Remove the filler plug and check the gear oil level.
Q: Is the gear oil level more than 6 mm (0.2 inch) below the 

bottom of the filler plug hole?
YES : Refill the specified lubricant. 

 

Differential mechanism part: MITSUBISHI Genuine 
DIA QUEEN LSD gear oil

 

Torque transfer mechanism part: DIAMOND ATF SP 
III

 

Then go to Step 4 .

NO :  Go to Step 4.

STEP 4. Retest the system.
Q: Is there oil leakage?

YES : Start over at Step 1.
NO :  The procedure is complete.

REAR AXLE DIAGNOSIS <AYC>

STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING

M1271004200325

Refer to GROUP 00 

− Troubleshooting Contents 

P.00-7

.

DIAGNOSTIC FUNCTION

M1271006600017

HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A (Vehicles with 

CAN communication system)

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

REAR AXLE DIAGNOSIS <AYC>

TSB Revision

REAR AXLE

27-7

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
1. Ensure that the ignition switch is at the "LOCK" (OFF) 

position.

2. Start up the personal computer.
3. Connect special tool MB991827 to special tool MB991824 

and the personal computer.

4. Connect special tool MB991910 to special tool MB991824.
5. Connect special tool MB991910 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON" 

position.
NOTE: When special tool MB991824 is energized, special 
tool MB991824 indicator light will be illuminated in a green 
color.

7. Start the M.U.T.-III system on the personal computer.
NOTE: Disconnecting scan tool MB991958 is the reverse of the 
connecting sequence, making sure that the ignition switch is at 
the "LOCK" (OFF) position.

HOW TO READ AND ERASE DIAGNOSTIC 
TROUBLE CODES

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A (Vehicles with 

CAN communication system)

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
NOTE: If the battery voltage is low, diagnostic trouble codes will 
not be set. Check the battery if scan tool MB991958 does not 
display.
1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select" from the start-up screen.
4. Select "From 2006 MY" of "Model Year." When the "Vehicle 

Information" is displayed, check the contents.

5. Select "ETACS" from "System List", and press the "OK" 

button.
NOTE: When the "Loading Option Setup" list is displayed, 
check the applicable item.

6. Select "Diagnostic Trouble Code."
7. If a DTC is set, it is shown.
8. Choose "Erase DTCs" to erase the DTC.

REAR AXLE DIAGNOSIS <AYC>

TSB Revision

REAR AXLE

27-8

DIAGNOSTIC TROUBLE CODE CHART

M1271006700014

CAUTION

During diagnosis, a DTC code associated with other systems may be set when the ignition switch is 
turned on with connector(s) disconnected. On completion, check all systems for DTCs. If DTC 
code(s) are set, erase them all.
NOTE: Refer to GROUP 22A

−

Diagnostic Trouble Code Chart  

P.22A-11

 for Others Diagnostic Trouble Code.

DTC No.

Inspection item

Reference page

C1619

AYC current value

P.27-9

C161A

AYC direction valve(RH) output

P.27-13

C161B

AYC direction valve(LH) output

P.27-17

C1620

AYC control abnormality

P.27-22