Mitsubishi Evolution X. Manual — part 862
PARKING BRAKE DIAGNOSIS
TSB Revision
PARKING BRAKES
36-5
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
.
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.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
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: Indicator lamp 4: ON
• The brake warning light illuminates.
• Item 13: Indicator lamp 4: 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
STEP 2. Check the parking brake switch.
Refer to
.
Q: Is the parking brake switch normal?
YES : Go to Step 3.
NO : Replace the parking brake switch. Then go to Step 7.
PARKING BRAKE DIAGNOSIS
TSB Revision
PARKING BRAKES
36-6
STEP 3. Check parking brake switch connector C-122,
intermediate connector C-23 and combination meter
connector C-04 for loose, corroded or damaged terminals,
or terminals pushed back in the connector.
Q: Are the connectors and terminals in good condition?
YES : Go to Step 4.
NO : Repair or replace the faulty connector. (Refer to
GROUP 00E, Harness Connector Inspection
STEP 4. Check the harness wire parking brake switch
connector C-122 terminal 1 and combination meter
connector C-04 terminal 4 for damage.
Q: Are the harness wires in good condition?
YES : Go to Step 5.
NO : Repair the damaged harness wire. Then go to Step 7.
STEP 5. Check the parking brake switch ground for
damage.
Q: Is the parking brake switch ground in good condition?
YES : Go to Step 6.
NO : Repair the ground or damaged harness wire. Then go
to Step 7.
STEP 6. 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
NO : Replace the combination meter (Refer to GROUP
54A, Combination meter assembly
STEP 7. 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.
PARKING BRAKE DIAGNOSIS
TSB Revision
PARKING BRAKES
36-7
INSPECTION PROCEDURE 3: When the Parking Brake Lever is Released, the Brake Warning Light
does not Turn Off.
AC709249 AB
Brake Waring Light Circuti
INTERFACE
CIRCUIT
COMBINATION
METER
PARKING
BRAKE SWITCH
AC708950
Connector: C-04
AR
AC708951AN
C-23
C-122
Connectors: C-23, C-122
.
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
.
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
PARKING BRAKE DIAGNOSIS
TSB Revision
PARKING BRAKES
36-8
STEP 1. Using scan tool MB991958, check combination
meter actuator test.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
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: Indicator lamp 4: ON
• The brake warning light illuminates.
• Item 13: Indicator lamp 4: 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
STEP 2. Check the parking brake switch.
Refer to
.
Q: Is the parking brake switch normal?
YES : Go to Step 3.
NO : Replace the parking brake switch. Then go to Step 7.
STEP 3. Check parking brake switch connector C-122,
intermediate connector C-23 and combination meter
connector C-04 for loose, corroded or damaged terminals,
or terminals pushed back in the connector.
Q: Are the connectors and terminals in good condition?
YES : Go to Step 4.
NO : Repair or replace the faulty connector. (Refer to
GROUP 00E, Harness Connector Inspection
STEP 4. Check the harness wire parking brake switch
connector C-122 terminal 1 and combination meter
connector C-04 terminal 4 for damage.
Q: Are the harness wires in good condition?
YES : Go to Step 5.
NO : Repair the damaged harness wire. Then go to Step 7.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст