Mitsubishi Montero (2004+). Manual — part 1014
HYDRAULIC BRAKE BOOSTER (HBB) DIAGNOSIS
TSB Revision
BASIC BRAKE SYSTEM
35A-55
STEP 22. Check the following connectors.
• HBB connector B-17
• M-ASTC-ECU connector E-119
Check connectors, for loose, corroded or damaged terminals,
or terminals pushed back in the connector.
Q: Are the connectors and terminals in good condition?
YES : Go to Step 23.
NO : Repair the faulty connector or terminal. Then go to
Step 25.
AC204629 AC
CONNECTOR: B-17
B-17 (GR)
HBB CONNECTOR
B-17
AC203901
AC204627 AB
CONNECTOR: E-119
E-119
M-ASTC-ECU CONNECTOR
E-119
HYDRAULIC BRAKE BOOSTER (HBB) DIAGNOSIS
TSB Revision
BASIC BRAKE SYSTEM
35A-56
STEP 23. Check the following harness wire.
• The wire between M-ASTC-ECU connector E-119 (terminal
25) and HBB connector B-17 (terminal 4)
Q: Is the harness wire damaged?
YES : Repair or replace it and then go to Step 25.
NO : Go to Step 24.
STEP 24. Recheck for diagnostic trouble code.
(1) Erase the DTC memory.
(2) Recheck for diagnostic trouble code.
Q: Is DTC 54 set?
YES : Replace the M-ASTC-ECU (Refer to GROUP 35C,
M-ASTC-ECU
NO : It can be assumed that this malfunction is intermittent.
Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
− How to
Cope with Intermittent Malfunction
.
AC203901
AC204627AC
CONNECTOR: E-119
E-119
HARNESS CONNECTOR:
COMPONENT SIDE
E-119
AC204629 AE
CONNECTOR: B-17
B-17 (GR)
HARNESS CONNECTOR:
COMPONENT SIDE
1
2
3
4
5
6
7
8
B-17
HYDRAULIC BRAKE BOOSTER (HBB) DIAGNOSIS
TSB Revision
BASIC BRAKE SYSTEM
35A-57
STEP 25. Recheck for diagnostic trouble code.
(1) Erase the DTC memory.
(2) Recheck for diagnostic trouble code.
Q: Is DTC 54 set?
YES : Start over at Step 1.
NO : The procedure is complete.
HYDRAULIC BRAKE BOOSTER (HBB) DIAGNOSIS
TSB Revision
BASIC BRAKE SYSTEM
35A-58
DTC 55 : Pump Motor Circuit (Pump Motor Energized Abnormally for Long Period)
AC204496AB
Pump Motor Control Circuit
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