Mitsubishi Montero (2004+). Manual — part 1059
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-79
STEP 2. Check the M-ASTC-ECU connectors E-120.
(1) Disconnect the M-ASTC-ECU connector E-120.
(2) Turn the ignition switch to the "ON" position.
(3) Measure voltage between terminal 50 and ground. It should
be approximately 5 volts.
Q: Is the voltage approximately 5 volts?
YES : Go to Step 3.
NO : Replace the M-ASTC-ECU and go to Step 10.
AC203901
AC204627AV
CONNECTOR: E-120
E-120
ASC-ECU CONNECTOR:
HARNESS SIDE
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-80
STEP 3. Check the harness wires between M-ASTC-ECU
connector E-120 terminal 50 and pressure sensor
connector B-55 terminal 2.
Q: Is the harness wire between M-ASTC-ECU connectors
E-120 terminal 50 and pressure sensor connector B-55
terminal 2 damaged?
YES : Repair it and then go to Step 10.
NO : This malfunction is intermittent. Refer to GROUP 00,
How to Use Troubleshooting/Inspection Service
Points
− How to Cope With Intermittent Malfunction
.
AC203901
AC204627AG
CONNECTOR: E-120
E-120
HARNESS CONNECTOR:
COMPONENT SIDE
E-120
AC204772AC
B-55(GR)
CONNECTOR: B-55
1
3
2
HARNESS CONNECTOR:
COMPONENT SIDE
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-81
STEP 4. Check the ground circuit at pressure sensor
connector B-55.
(1) Disconnect the pressure sensor connector B-55, and
measure at the harness side.
(2) Measure the resistance between terminal 3 and ground. It
should be less than 2 ohms.
Q: Is there continuity between the terminal number 3 and
ground?
YES : Go to Step 7.
NO : Go to Step 5.
STEP 5. Check the ground circuit at M-ASTC-ECU
connector E-120.
(1) Disconnect the M-ASTC-ECU connector E-120, and
measure at the harness side.
(2) Measure the resistance between terminal 58 and ground. It
should be less than 2 ohms.
Q: Is there continuity between the terminal number 58 and
ground?
YES : Go to Step 6.
NO : Replace the M-ASTC-ECU and go to Step 10.
AC204772
AC204773AC
B-55(GR)
CONNECTOR: B-55
1
3
2
HARNESS CONNECTOR:
HARNESS SIDE
AC203901
AC204627AW
CONNECTOR: E-120
HARNESS CONNECTOR:
COMPONENT SIDE
E-120
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-82
STEP 6. Check the harness wire between the M-ASTC-ECU
connector E-120 terminal 58 and pressure sensor
connector B-55 terminal 3.
Q: Is the harness wire between the M-ASTC-ECU
connector E-120 terminal 58 and pressure sensor
connector B-55 terminal 3 damaged?
YES : Replace it and go to Step 10.
NO : This malfunction is intermittent. Refer to GROUP 00,
How to Use Troubleshooting/Inspection Service
Points
− How to Cope With Intermittent Malfunction
.
AC203901
AC204627AG
CONNECTOR: E-120
E-120
HARNESS CONNECTOR:
COMPONENT SIDE
E-120
AC204772AC
B-55(GR)
CONNECTOR: B-55
1
3
2
HARNESS CONNECTOR:
COMPONENT SIDE
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