Mitsubishi Lancer Evolution X. Manual - part 211

PARKING BRAKE DIAGNOSIS

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PARKING BRAKES

36-3

SYMPTOM CHART

M1361004100410

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Insufficient Parking Brake Function

DIAGNOSIS

STEP 1. Check the excessive parking brake lever 
stroke.
 Refer to 

P.36-8

.

Q: Is the parking brake lever stroke adjusted 

properly?
YES : 

Go to Step 2.

NO : 

Adjust the parking brake lever stroke or 
check the parking brake cable routing 
(Refer to 

P.36-8

). Then go to Step 5.

STEP 2. Check the parking brake rear cable for 
sticking.

Q: Is the parking brake rear cable stuck?

YES : 

Replace the parking brake rear cable (Refer 

to 

P.36-12

). Then go to Step 5.

NO : 

Go to Step 3.

STEP 3. Check the brake lining and brake drum 
for wear.
 Refer to 

P.36-17

.

Q: Is the brake lining thickness or brake drum inside 

diameter outside of specification?
YES : 

Replace the rear brake shoe assembly or 

rear brake disk (Refer to 

P.36-14

). Then go 

to Step 5. 

NO : 

Go to Step 4.

STEP 4. Check for oil, water, etc., on the lining 
contact surfaces.

Q: Is oil, water, etc., on the lining contact surface?

YES : 

Replace the part and determine and repair 

source/cause of foreign material. Then go to 
Step 5.

NO : 

Carry out the parking brake lining seating 
procedure (Refer to 

P.36-9

) and then go to 

Step 5.

STEP 5. Retest the system.

Q: Is the malfunction eliminated?

YES : 

The procedure is complete.

NO : 

Recheck from Step 1.

Symptom

Inspection 
procedure

Reference page

Brake drag

−

Refer to GROUP 35A, Basic Brake 
System Diagnosis − Symptom 

Chart 

P.35A-4

.

Brake warning light stays ON with the parking brake 
lever released.

−

Refer to GROUP 35C, ASC 
Diagnosis − Symptom Chart 

P.35C-234

.

Insufficient parking brake function

1

P.36-3

When the parking brake lever is pulled, the brake 
warning light does not illuminate.

2

P.36-4

PARKING BRAKE DIAGNOSIS

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PARKING BRAKES

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INSPECTION PROCEDURE 2: When the Parking Brake Lever is Pulled, the Brake Warning Light does 
not Illuminate.

.

TECHNICAL DESCRIPTION (COMMENT)

The parking brake switch turns on and off by operat-
ing the parking brake lever, and the brake warning 
light illuminates and goes out, indicating the operat-
ing status of parking brake to a driver.

.

TROUBLESHOOTING HINTS (THE MOST 
LIKELY CAUSES FOR THIS CASE:) 

• Damaged wiring harness or connector
• Parking brake switch defective
• Combination meter defective 

.

AC709249 AB

Brake Warning Light Circuit

INTERFACE 
CIRCUIT

COMBINATION 
METER

PARKING 
BRAKE SWITCH

AC708950

Connector: C-04

AR

AC708951AN

C-23

C-122

Connectors: C-23, C-122

PARKING BRAKE DIAGNOSIS

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PARKING BRAKES

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DIAGNOSIS

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

STEP 1. Using scan tool MB991958, check combination 
meter actuator test.

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) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Turn the parking brake switch and brake fluid level switch to 

"OFF" position.

(4) Set scan tool MB991958 to the actuator test mode.

• Item 13: Indicator4: ON

• The brake warning light illuminates.

• Item 13: Indicator4: OFF

• The brake warning light goes out.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the check result normal?

YES : Go to Step 2.
NO :  Replace the combination meter (Refer to GROUP 

54A − Combination meter assembly 

P.54A-110

).

STEP 2. Check the parking brake switch.
Refer to 

P.36-9

.

Q: Is the parking brake switch normal?

YES : Go to Step 3.
NO :  Replace the parking brake switch (Refer to 

P.36-10

). 

Then go to Step 6.

STEP 3. Connector check: C-122 parking brake switch 
connector, C-23 intermediate connector and C-04 
combination meter connector
Q: Is the check result normal?

YES : Go to Step 4.
NO :  Repair or replace the faulty connector (Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

). Then go to Step 6.

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

PARKING BRAKE DIAGNOSIS

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PARKING BRAKES

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STEP 4. Check the wiring harness for an open circuit 
between C-122 parking brake switch connector terminal 
No.1 and C-04 combination meter connector terminal No.4. 
(1) Disconnect C-122 parking brake switch connector from 

C-04 combination meter connector, and measure at the 
wiring harness side connector.

(2) Measure the resistance between C-122 parking brake 

switch connector terminal No.1 and C-04 combination 
meter connector terminal No.4.

OK: Continuity exists (2 Ω or less)

Q: Is the check result normal?

YES : Go to Step 5.
NO :  A open circuit may be present in the wiring harness 

between C-122 parking brake switch connector 
terminal No.1 and C-04 combination meter connector 
terminal No.4. Repair the wiring harness if necessary, 
and then go to Step 6.

STEP 5. Retest the system.
Q: Does the brake warning light illuminate when the 

parking brake lever is pull?
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.00-15

).

NO :  Replace the combination meter (Refer to GROUP 

54A, Combination meter assembly 

P.54A-110

).

STEP 6. Retest the system.
Q: Does the brake warning light illuminate when the 

parking brake lever is pulled?
YES : The procedure is complete.
NO :  Return to Step 1.