Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 583

ANTI-SKID BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-23

STEP 7. Check the diagnostic trouble codes.

Q: Does the diagnostic trouble code 38 reset?

YES : Return to Step 1.
NO : This diagnosis is complete.

DTC 41, 42, 43, 44, 45, 46, 47, 48: ABS Solenoid Valve inside Hydraulic Unit (Open Circuit or Short
circuit) /DTC 51: Valve Power Supply /DTC 53: Pump Motor

AC004424AB

FUSIBLE LINK (2)

BATTERY

Solenoid Valve and Motor Power Supply Circuit

ANTI-SKID BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-24

CIRCUIT OPERATION
Power is continuously supplied to the ABS-ECU
through fusible link number 6 to operate the solenoid
valve and motor.

ABS DTC SET CONDITIONS
These codes are displayed if the power supply circuit
of solenoid valve or motor is open or shorted.

TROUBLESHOOTING HINTS (The most likely
causes for these DTCs are to set are:)

•

Damaged wiring harness or connector

•

Malfunction of the hydraulic unit (integrated with
ABS-ECU)

DIAGNOSIS

Required Special Tools:

•

MB991223: Harness Set

•

MB991502: Scan Tool (MUT-II)

•

MB991529: Diagnostic Trouble Code Check Harness

STEP 1. Check the solenoid valve or motor power supply
circuit at ABS-ECU connector A-02.
(1)Disconnect the ABS-ECU connector A-02 and measure at

the harness side.

(2)Measure the voltage between terminal 18 and ground, and

17 and ground.

Q: Is the voltage approximately 12 volts (battery positive

voltage)?
YES : Replace the hydraulic unit (integrated with ABS-ECU)

(Refer to

P.35B-51

.) and then go to Step 3.

NO : Go to Step 2.

AC001985

CONNECTOR: A-02

AC004431AB

CONNECTOR: C-05

COMBINATION METER

AC004422 AB

FUSIBLE LINK (6)

AC000945

A-02 (HARNESS SIDE)

ANTI-SKID BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-25

STEP 2. Check the harness wires between the fusible link
number 6 and the ABS-ECU connector A-02.
NOTE: After inspecting the intermediate connector C-05,
inspect the wires. If the intermediate connector C-05 is
damaged, repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection

P.00E-2

. If the connector has been

repaired or replaced, go to Step 3.

Q: Is any of the harness wires between the fusible link

number 6 and the ABS-ECU connector A-02 damaged?
YES : Repair it and then go to Step 3.
NO : Go to Step 3.

STEP 3. Check the diagnostic trouble codes.

Q: Do the diagnostic trouble codes 41, 42, 43, 44, 45, 46,

47, 48, 51 or 53 reset?
YES : Go to Step 1.
NO : This diagnosis is complete.

SYMPTOM CHART

M1352011400114

NOTE: If steering movements are made when
driving at high speed, or when driving on road
surfaces with low frictional resistance, or when
passing over bumps, the ABS may operate although
sudden braking is not being applied. Because of this,
when getting information from the customer, check if
the problem occurred while driving under such
conditions as these.

NOTE: During ABS operation, the brake pedal may
vibrate a little or may not be able to be pressed. Such
conditions are due to intermittent changes in
hydraulic pressure inside the brake line to prevent
the wheels from locking. This is normal.

AC001985

CONNECTOR: A-02

AC004431AB

CONNECTOR: C-05

COMBINATION METER

AC004422 AB

FUSIBLE LINK (6)