2004 MITSUBISHI ENDEAVOR speed sensor

The amount of voltage generated at each wheel is determined by the clearance
between the ABS rotor teeth and the ABS sensor, and by the speed of rotation. Sends alternating current signals at frequencies which are proportional to the
rotation speeds of each wheel to the ABS electronic control unit (ABS-ECU). The ABS hydraulic unit modulates the amount of braking force individually
applied to each wheel cylinder.
ABS DTC SET CONDITIONS The ABS-ECU monitors voltage fluctuation in each ABS sensor circuit. If the ECU
detects short or open circuit in the circuit, it will set a diagnostic trouble code. TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THESE DTCS ARE TO SET ARE:)
Current trouble
Malfunction of the ABS sensor Damaged wiring harness or connector Malfunction of the hydraulic unit (integrated with ABS-ECU)
Past trouble
Carry out diagnosis with particular emphasis o connector(s) or wiring harness
in ABS sensor circuit. 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.

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

Connector

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Start the engine.
3. Set scan tool MB991958 to the data reading mode, and check the data list
items by driving the vehicle.
Item 01 (DTC C1200 is set): Front right ABS sensor Item 02 (DTC C1205 is set): Front left ABS sensor Item 03 (DTC C1210 is set): Rear right ABS sensor Item 04 (DTC C1215 is set): Rear left ABS sensor
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Does the speedometer indication match the scan tool indication?
YES: It can be assumed that this malfunction is intermittent. Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
.
NO: Go to Step 4.
STEP 4. 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 the relevant signal and ground terminals in
the ABS sensor circuit and body ground. It should be less than 1V.
DTC C1200 is set: Between signal terminal 9 and body ground, and
between ground terminal 10 and body ground DTC C1205 is set: Between signal terminal 26 and body ground, and
between ground terminal 16 and body ground DTC C1210 is set: Between signal terminal 11 and body ground, and between
ground terminal 17 and bod
y ground 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

field of each ABS sensor. The amount of voltage generated at each wheel is determined by the clearance
between the ABS rotor teeth and the ABS sensor, and by the speed of rotation. Sends alternating current signals at frequencies which are proportional to the
rotation speeds of each wheel to the ABS electronic control unit (ABS-ECU). The ABS hydraulic unit modulates the amount of braking force individually
applied to each wheel cylinder.
ABS DTC SET CONDITIONS The ABS-ECU monitors the signals from each ABS sensor while the vehicle is
being driven. If any faults below are found in these sensor signals, the ECU will set
the relevant diagnostic trouble code.
Missing sensor signal Sensor signal, which will not be created under normal operation Significant difference among the ABS sensor signals
TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THESE DTCS ARE TO SET ARE:)
Current trouble
Malfunction of the ABS sensor or ABS rotor Damaged wiring harness or connector Malfunction of the hydraulic unit (integrated with ABS-ECU)
Past trouble
Carry out diagnosis with particular emphasis o connector(s) or wiring harness
in ABS sensor circuit. For diagnosis procedures, refer to (Refer to HOW TO USE TROUBLESHOOTING/ INSPECTION SERVIC
).
PAST TROUBLE For diagnosis procedures, refer to "HOW TO TREAT PAST TROUBLE
" (Refer
to HOW TO USE TROUBLESHOOTING/ INSPECTION SERVIC
).
DIAGNOSIS
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 146: Identifying Special Tools (2 Of 2)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
ON-VEHICLE SERVICE ABS SENSOR OUTPUT VOLTAGE MEASUREMENT Required Special Tool:
MB991219: Inspection Harness
1. Release the parking brake and lift up the vehicle.
2. Disconnect the ABS-ECU connector A-02, and then use special tool
MB991219 to measure the out
put volta
ge at the harness side connector.
NOTE: For vehicles with ASC, refer to WHEEL SPEED SENSOR
OUTPUT VOLTAGE MEASUREMENT
.

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

Fig. 149: Identifying Output Voltage Grap
h
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Probable causes of low output voltage
ABS sensor pole piece-to-ABS rotor clearance too large Faulty ABS sensor
4. To observe the waveform with an oscilloscope:
Front Wheels: Shift into "D" range and drive the wheels. Rear Wheels: Turn the wheels manually at a constant speed
POINTS IN WAVEFORM MEASUREMENT Fig. 150: Identifying Points In Waveform Measurement

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA. NOTE: The output waveform is low when the wheel speed is low.
Similarly, it will be higher as the wheel speed increases.
Waveform may also be observed by driving the vehicle.
NOTE: The ABS sensor cable moves in relation to motion of the
front or rear suspension. Therefore, it is likely that it has an
open circuit only when driving on rough roads but it
functions normally when driving on smooth roads. It is
recommended to observe sensor output voltage waveform
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 157: Identifying Brake Tube Connection

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
WHEEL SPEED SENSOR REMOVAL AND INSTALLATION
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 158: Removing & Installing Wheel Speed Sensor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig. 159: Wheel Speed Sensor Removal & Installation Legend

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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

1. Check whether any metallic foreign material has adhered to the projection at
the speed sensor tip. Remove any foreign material. Also check whether the
pole piece is damaged. Replace it with a new one if it is damaged.
2. Measure the resistance between the ABS sensor terminals.
Standard value: 1.24 - 1.64 kohm
Fig. 161: Measuring Resistance Between ABS Sensor Terminals

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
3. If the internal resistance of the ABS sensor is no
t within the standard value, NOTE: The projection can become magnetized due to the
magnet inside the ABS sensor, causing foreign material
to easily adhere to it. The projection may not be able to
correctly sense the wheel rotation speed if foreign
matter is on it or if it is damaged.

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