Mitsubishi Montero (2002-2004). Manual — part 1000
HYDRAULIC BRAKE BOOSTER (HBB) DIAGNOSIS
TSB Revision
BASIC BRAKE SYSTEM
35A-25
STEP 2. Check the following connectors.
• HBB connector B-17 and B-18
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 3.
NO : Repair the faulty connector or terminal and then go to
Step 10.
STEP 3. Check the HBB ground circuit at HBB harness
connector B-17.
(1) Disconnect HBB connector B-17 and measure at the
harness connector (component side).
(2) Measure the resistance between terminal 7 and ground.
The resistance should measure less than 2 ohms.
Q: Is the measured resistance less than 2 ohms?
YES : Go to Step 4.
NO : Repair the harness wire between HBB connector B-
17 (terminal 7) and ground. Then go to Step 10.
AC204629 AB
CONNECTORS: B-17, B-18
B-17 (GR)
B-18 (B)
B-17
B-18
HBB CONNECTORS
AC204629 AC
CONNECTOR: B-17
B-17 (GR)
HBB CONNECTOR
B-17
ACX01937
1
2
3
4
5
6
7
8
AC
HARNESS CONNECTOR:
COMPONENT SIDE
B-17
(GR)
HYDRAULIC BRAKE BOOSTER (HBB) DIAGNOSIS
TSB Revision
BASIC BRAKE SYSTEM
35A-26
STEP 4. Check the HBB ground circuit at HBB harness
connector B-18.
(1) Disconnect HBB connector B-18 and measure at the
harness connector (component side).
(2) Measure the resistance between terminal 32 and ground.
The resistance should measure less than 2 ohms.
Q: Is the measured resistance less than 2 ohms?
YES : Go to Step 5.
NO : Repair the harness wire between HBB connector B-
18 (terminal 32) and ground. Then go to Step 10.
AC204629 AD
CONNECTOR: B-18
B-18 (B)
HBB CONNECTOR
B-18
AC204550
34
32
31
33
35
HARNESS CONNECTOR:
COMPONENT SIDE
AB
B-18 (B)
HYDRAULIC BRAKE BOOSTER (HBB) DIAGNOSIS
TSB Revision
BASIC BRAKE SYSTEM
35A-27
STEP 5. Check the HBB (continuity and resistance test of
the pump motor).
(1) Disconnect HBB connectors B-17 and B-18.
(2) Check for continuity and measure the resistance between
terminals at the HBB connectors.
Q: Does continuity exist between above terminals?
YES : Go to Step 7.
NO : Go to Step 6.
TESTER
CONNECTION
SPECIFIED
CONDITION
RESISTANCE
Ω
(REFERENCE VALUE)
2
− 7
Continuity
10 or less
2
− 8
Continuity
Approximately 33
2
− 31
Continuity
Less than 2
4
− 6
Continuity
Approximately 33
4
− 32
Continuity
Approximately 33
6
− 7
Continuity
Less than 2
6
− 32
Continuity
Less than 2
7
− 32
Continuity
Less than 2
8
− 31
Continuity
Approximately 33
31
− 32
Continuity
10 or less
AC204629 AB
CONNECTORS: B-17, B-18
B-17 (GR)
B-18 (B)
B-17
B-18
HBB CONNECTORS
ACX00662AC
B-18
B-17
HYDRAULIC BRAKE BOOSTER (HBB) DIAGNOSIS
TSB Revision
BASIC BRAKE SYSTEM
35A-28
STEP 6. Check the pump motor and lead wire.
(1) Remove the HBB (Refer to
).
(2) Remove the pump motor and the lead wire from the HBB
(Refer to
).
(3) Check the following items:
• Confirm that the pump motor operates when the battery
voltage is imposed at the pump motor terminal.
• Confirm the continuity of the lead wire.
Q: Are both of the pump motor and the lead wire in good
condition?
YES : Replace the master cylinder and hydraulic unit
). Then go to Step 10.
NO : Replace the pump motor or the lead wire (Refer to
STEP 7. Check the following connector.
• M-ASTC-ECU connector E-119
Check connector, for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q: Are the connector and terminals in good condition?
YES : Go to Step 8.
NO : Repair the faulty connector or terminal and then go to
Step 10.
AC203901
AC204627 AB
CONNECTOR: E-119
E-119
M-ASTC-ECU CONNECTOR
E-119
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст