Mitsubishi Montero (2004+). Manual — part 1061
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-87
.
CIRCUIT OPERATION
The diagnostic output is made from the
M-ASTC-ECU (terminal 21) to the diagnostic output
terminal (terminal 7) of the data link connector.
.
TECHNICAL DESCRIPTION (COMMENT)
When communication with the scan tool is not possi-
ble, the cause is probably an open circuit in the
M-ASTC-ECU power circuit or an open circuit in the
diagnostic output circuit.
.
TROUBLESHOOTING HINTS
• Blown fuse
• Damaged wiring harness and connector
• Malfunction of the M-ASTC-ECU
.
DIAGNOSIS
Required Special Tool:
• MB991223: Harness Set
AC204677AC
CONNECTORS: D-28, D-29, D-118
D-28
D-29
D-118(B)
AC204384
D-116
AF
CONNECTORS: D-14, D-116
D-14
AC204547AD
CONNECTORS: D-208, D-210, D-211, D-212
D-208
D-212
JUNCTION BLOCK
(FRONT VIEW)
D-211(B)
D-210
AC204548 AB
CONNECTOR: E-111
E-111
AC203901AD
CONNECTORS: E-119, E-120
E-119
E-120
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-88
STEP 1. Check the harness wires between M-ASTC-ECU
connector E-119 terminal 21 and data link connector D-118
terminal 7.
NOTE: After inspecting M-ASTC-ECU connector E-119, joint
connector D-116, intermediate connector E-111 and joint con-
nector D-29, inspect the wire. If M-ASTC-ECU connector
E-119, joint connector D-116, intermediate connector E-111 and
joint connector D-29 are damaged, repair or replace them.
Refer to GROUP 00E, Harness Connector Inspection
If the connector has been repaired or replaced, go to Step 5.
Q: Are the harness wires between M-ASTC-ECU connector
E-119 terminal 21 and data link connector D-118 terminal
7 damaged?
YES : Repair them and then go to Step 5.
NO : Go to Step 2.
AC203901
AC204627AC
CONNECTOR: E-119
E-119
HARNESS CONNECTOR:
COMPONENT SIDE
E-119
AC204677
AC204701AD
CONNECTORS: D-29, D-118
D-29
D-29
DATA LINK CONNECTOR:
FRONT SIDE
8
16
15
7
5
1314
6
12
4
2
1011
3
9
1
D-118(B)
D-118
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-89
STEP 2. Check the power supply circuit at M-ASTC-ECU
connectors E-119 and E-120.
(1) Disconnect connectors E-119 and E-120, and measure at
the harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between M-ASTC-ECU connector
E-120 terminal 63 and ground. It should be approximately
12 volts (battery positive voltage).
Q: Is voltage approximately 12 volts (battery positive
voltage)?
YES : Go to Step 4.
NO : Go to Step 3.
AC203901
AC204627AO
E-119
CONNECTORS: E-119, E-120
E-119
HARNESS CONNECTOR:
COMPONENT SIDE
E-120
HARNESS CONNECTOR:
COMPONENT SIDE
E-120
AC204708AB
HARNESS CONNECTOR:
COMPONENT SIDE
E-120
HARNESS CONNECTOR:
COMPONENT SIDE
E-119
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-90
STEP 3. Check the harness wire between ignition switch
(IG2) connector D-204 terminal 4 and M-ASTC-ECU
connectors E-119 terminal 9 and E-120 terminal 63.
NOTE: After inspecting M-ASTC-ECU connectors E-119 and
E-120, intermediate connector E-111, joint connector D-116,
junction block connector D-208 and D-212, inspect the wire. If
M-ASTC-ECU connectors E-119 and E-120, intermediate con-
nector E-111, joint connector D-116, junction block connector
D-208 and D-212 are damaged, repair or replace them. Refer
to GROUP 00E, Harness Connector Inspection
. If the
connector has been repaired or replaced, go to Step 5.
AC204709
CONNECTOR: D-204
D-204
AB
AC203901
AC204627AO
E-119
CONNECTORS: E-119, E-120
E-119
HARNESS CONNECTOR:
COMPONENT SIDE
E-120
HARNESS CONNECTOR:
COMPONENT SIDE
E-120
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст