MITSUBISHI ENDEAVOR 2004 Service Repair Manual

Fig. 125: Brake Warning Light Circuit Diagram & Connector Identification

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CAUTION: If there is any problem in the CAN bus lines, an
incorrect diagnostic trouble code may be set. Prior to

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

CIRCUIT OPERATION The meter-ECU detects the brake fluid level switch ON/OFF and controls the brake
warning light ON/OFF.
The TCL/ASC-ECU and the meter-ECU are connected each other via a CAN bus
line, and the meter-ECU informs the TCL/ASC-ECU whether the brake fluid level
switch is turned on or off. ABS DTC SET CONDITIONS This DTC is set when all of the following cases are met.
When the amount of the brake fluid is less than lower limit. Vehicle speed is 15 km/h or more
TROUBLESHOOTING HINTS (The most likely causes for this DTC is to set are:)
Current trouble
Brake fluid is not filled Damaged wiring harness or connector Malfunction of the hydraulic unit (integrated with TCL/ASC-ECU) Malfunction of the combination meter (integrated with meter ECU)
Past trouble
Carry out diagnosis with particular emphasis on connector(s) or wiring harness
between the combination meter circuit (terminal 7) to the brake fluid level
switch or parking brake switch. For diagnosis procedures, refer to HOW TO TREAT PAST TROUBLE
).
DIAGNOSIS Required Special Tools:
MB991958: Scan Tool
(MUT-III Sub Assembl
y) this diagnosis, diagnose the CAN bus lines.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

MB991824: Vehicle Communication Interface (V.C.I.) MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A
MB991952: ABS Check Harness
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.
1. Connect scan tool MB991958 to the data link connec
tor. CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 126: Connecting Scan Tool MB991958 To Data Link Connector

Courtes
y of MITSUBISHI MOTOR SALES OF AMERICA
.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

2. Turn the ignition switch to the "ON" position.
3. Diagnose the CAN bus line.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?
YES: Go to Step 3.
NO: Repair the CAN bus line (Refer to DIAGNOSTIC TROUBLE
CODE DIAGNOSIS
or DIAGNOSIS < VEHICLES WITHOUT
ADVANCED AIR BAG
). Then go to Step 2.
STEP 2. Recheck for diagnostic trouble code.
1. Turn the ignition switch to the "ON" position.
2. Erase the DTC.
3. Turn the ignition switch to the "LOCK" (OFF) position.
4. Turn the ignition switch to the "ON" position.
5. Check if the DTC is set. CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 127: Rechecking For Diagnostic Trouble Code

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1345 set?
YES: Go to Step 3.
NO: The procedure is complete.
STEP 3. Check the brake warning light.
Check that the brake warning light illuminates with the parking brake lever
pulled up.
Q: Does the brake warning light illuminate?
YES: Replace the hydraulic unit (integrated with TCL/ASC-ECU). Then
go to Step 12.
NO: Go to Step 4.
STEP 4. Check the brake fluid amount.
Q: Is the brake fluid within lower and upper limits of the reservoir?
YES: Go to Step 5.
NO: Check the basic brake system to determine why the brake fluid was
decreased.
STEP 5. Check the brake warning light.
1. Disconnect brake fluid level switch connector A-04 and parking brake
switch connector
C-34.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 128: Disconnecting Brake Fluid Level Switch Connector A
-04
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 129: Disconnecting Parking Brake Switch Connector C
-34
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Turn the ignition switch to the "ON" position.
Q: Does the brake warning light illuminate?
YES: Go to Step 6.
NO: Check the brake fluid level switch (Refer to BRAKE FLUID
LEVEL SENSOR CHECK
, ) and parking brake switch and replace
them if necessary. Then go to Step 12.
STEP 6. Measure the resistance at combination meter connector C-102.
1. Disconnect brake fluid level switch connector A-04 and parking brake
switch connector
C-34.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 130: Disconnecting Brake Fluid Level Switch Connector A
-04
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor