Batter MITSUBISHI ENDEAVOR 2004 Service User Guide

a predetermined value or lower. C1861 will be set when the power supply voltage
to the ABS-ECU has increased to a predetermined value or higher. TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THESE DTCS ARE TO SET ARE:)
Current trouble
Excessive electrical load Defective battery Damaged wiring harness or connector Malfunction of the hydraulic unit (integrated with ABS-ECU) Charging system failed
PAST TROUBLE Carry out diagnosis with particular emphasis on connector(s) or wiring harness in
the power supply circuit (terminal 20) to the ABS-ECU. For diagnosis procedures,
refer to HOW TO USE TROUBLESHOOTING/ INSPECTION SERVIC
.
DIAGNOSIS Required Special Tools:
MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.) MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A
MB991970: 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 Anti-Lock Braking System (ABS) - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1860 or C1861 set?
YES: Go to Step 3.
NO: The procedure is complete.
STEP 3. Check the battery.
Check the battery (Refer to BATTERY TEST
).
Q: Is the battery in good condition?
YES: Go to Step 4.
NO: Charge or replace the battery.
STEP 4. Check the charging system.
Check the charging system (Refer to GENERATORS & REGULATORS
).
Q: Is the charging system in good condition?
YES: Go to Step 5.
NO: Repair or replace the charging system component(s).
STEP 5. Measure the voltage at ABS-ECU connector A-02.
1. Disconnect the connector A-02, and connect special tool ABS Check
Harness (MB991970) to the wiring harness-side connector.
2. Turn the ignition switch to the "ON" position.
3. Measure the voltage between terminal 20 and ground. It should be
approximately 12 volts (battery positive voltage). NOTE: Do not connect special tool ABS Check Harness
(MB991970) to the ABS-ECU.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Q: Is the voltage approximately 12 volts (battery positive voltage)?
YES: Go to Step 7 .
NO: Go to Step 6.
STEP 6. Check the following connectors.
AB
S-ECU connector A-02

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 126: Identifying Connectors: C
-214, C
-215

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION
The ABS-ECU is energized by the ignition switch (IG2) through multi-purpose
fuse 13 and the ABS-ECU terminal 20. If the power supply to the ABS-ECU has failed, scan tool (MUT-III Sub
Assembly) will not be able to communicate with it.
TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CASE:)
Damaged wiring harness or connector Defective battery Charging system failed Malfunction of the hydraulic unit (integrated with ABS-ECU)
DIAGNOSIS
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Required Special Tools:
MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.) MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A
MB991970: ABS Check Harness
STEP 1. Measure the voltage at ABS-ECU connector A-02.
1. Disconnect the connector A-02, and connect special tool ABS Check
Harness (MB991970) to the wiring harness-side connector.
2. Turn the ignition switch to the "ON" position.
3. Measure the voltage between terminal 20 and ground. It should measure
approximately 12 volts (battery positive voltage). NOTE: Do not connect special tool ABS Check Harness
(MB991970) to the ABS-ECU.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Q: Is battery positive voltage (approximately 12 volts) present?
YES: Go to Step 3 .
NO: Go to Step 2.
STEP 2. Check the following connectors.
AB
S-ECU connector A-02

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

YES: Repair or replace the damaged components(s). Then go to Step 8 .
NO: An open circuit may be present in the ground circuit. Repair the
wiring harness between ABS-ECU connector A-02 terminals 2, 18 and the
body ground. Then go to Step 8 .
STEP 5. Check the battery.
Check the battery (Refer to BATTERY TEST
).
Q: Is the battery in good condition?
YES: Go to Step 6.
NO: Charge or replace the battery. Then go to Step 8 .
STEP 6. Check the charging system.
Check the charging system (Refer to GENERATORS & REGULATORS
).
Q: Is the charging system in good condition?
YES: Go to Step 7.
NO: Repair or replace the charging system component(s).
Then go to Step 8 .
STEP 7. Retest the system.
Q: Can the ABS-ECU communicate with the scan tool (MUT-III Sub
Assembly)?
YES: It can be assumed that this malfunction is intermittent. Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
.
NO: Replace the ABS-ECU. Then go to Step 8.
STEP 8. Retest the system.
Q: Can the ABS-ECU communicate with the scan tool (MUT-III Sub
Assembly)?

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

actuator is force-driven. The result should be as shown in the diagram above.
HYDRAULIC UNIT CHECK
11. If the result of inspection is abnormal, repair according to the Diagnosis Table
below.
Fig. 153: Diagnosis Table

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
12. After inspection, disconnect scan tool MB991958 immediately after turning the
ignition switch to the "LOCK" (OFF) position.
IN THE EVENT OF A DISCHARGED BATTERY
Front wheel
785 - 981 N (176 - 220 lb.)
Rear wheel
588 - 784 N (132 - 176 lb.)
WARNING:If the ABS is not operating, the vehicle will be
unstable during braking, Do not drive the vehicle

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

If the engine is started using a booster cable when the battery is completely flat, and
the vehicle is then driven without waiting for the battery to be recharged, the engine
may misfire and it may not be possible to drive the vehicle. This is because the ABS
consumes a large amount of current when carrying out its initial checks. If this
happens, recharge the battery fully. HYDRAULIC UNIT REMOVAL AND INSTALLATION
with the ABS-ECU connector disconnected or with
the ABS not operating for any other reason.
NOTE:
The ABS-ECU is integrated in the hydraulic unit. For vehicles with ASC, refer to HYDRAULIC UNIT
.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Such shorts can damage fuses or components and may cause a second
Diagnostic Trouble Code (DTC) to set, making diagnosis of original problem
more difficult. Never use an analog volt/ohm meter or test light in place of a Digital Volt/Ohm
Meter (DVOM). Use only a DVOM with a maximum test current of 2 mA
(milliamps) at minimum range of resistance measurement. If SRS is not fully functional for any reason, DO NOT drive vehicle until
system is repaired and fully functional. DO NOT remove bulbs, modules,
sensors, or other components or in any way disable system from operating
normally. If SRS is not functional, park vehicle until repairs are made.
DISABLING & ACTIVATING AIR BAG SYSTEM To disable system, turn ignition off. Disconnect negative battery cable. Shield cable
end with electrical tape. Wait at least 60 seconds before servicing air bag system.
To activate system, reconnect negative battery cable. Check system operation. See SYSTEM OPERATION CHECK
.
DISPOSAL PROCEDURES DEPLOYED AIR BAG OR SEAT BELT PRETENSIONER Place deployed component in a strong plastic bag and seal tightly. Dispose of
component as you would any other part. No other special disposal procedure is
required. UNDEPLOYED AIR BAG OR SEAT BELT PRETENSIONER
WARNING:Accidental air bag deployment is possible. Personal
injury may result. Read and follow all WARNINGS
and AIR BAG SAFETY PRECAUTIONS
before
working on air bag system or related components.
NOTE: Undeployed air bag modules must be deployed before
disposal. Disposing of an undeployed air bag may violate
federal, state and/or local laws. This also applies to vehicles
that are to be scrapped.

2004 Mitsubishi Endeavor Limited
2004 ACCESSORIES/SAFETY EQUIPMENT Mitsubishi - Air Bag Restraint Systems