Opel Frontera UBS. Service manual — part 134
4B1–26DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
3. Case that the indicator keeps blinking by 2Hz
after aforementioned Solution 2 is carried out.
Step
Action
Yes
No
1
Check the air pressure and wear of all tires.
Were problems found?
Try Solution 2
after adjust the
air pressure and
replace worn
tires.
Go to Step 2
2
Can the transfer lever be operated from High to 4L or vice versa?
Go to Step 3
Disconnection of
the motor
actuator harness
wiring. Trace this
chart from the
start after repair
or replace.
Faults on the
motor actuator.
Trace this chart
from the start
after replace.
Internal faults of
transfer case.
Disassemble the
transfer case for
check. Trace this
chart from the
start after repair
or replace.
3
Pull out the hoses from vacuum actuator and operate 4WD
switch.
Is there negative pressure on either of hoses?
Go to Step 4
Faults on the
transfer position
switch or its
harness. Trace
this chart from
the start after
repair or replace.
Faults on the
VSV main body,
its harness or
vacuuming
system. Trace
the front axle
diagnosis chart in
this section.
After that, trace
this chart from
the start.
4
Check the axle switch.
Were problems found?
Internal faults on
axle switch.
Trace this chart
from the start
after replace.
Disconnection on
the axle harness.
Trace this chart
from the start
after repair or
replace.
Faults on Front
Axle ASM. Trace
the front axle
diagnosis chart in
this section.
After that, trace
this chart from
the start.
4B1–27
DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
Fault on switching from 4WD to 2WD
1. Case that indicator does not blink nor turn out.
Step
Action
Yes
No
1
Does the indicator turn out by ignition off?
Go to Step 2
Short circuit of
the indicator
harness.
2
Is the 4WD switch on 2WD position?
Disconnection on
the 4WD switch
harness or
breakdown of the
4WD switch in
open state.
Trace this chart
from the start
after repair or
replace.
Turn the 4WD
switch to 2WD
position. Trace
this chart from
the start.
4B1–28DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
2. Case that indicator keeps 2Hz blinking after
aforementioned Solution 3 is carried out.
Step
Action
Yes
No
1
Check the air pressure and wear of all tires.
Were problems found?
Try Solution 3
after adjust the
air pressure and
replace worn
tires.
Go to Step 2
2
Can the transfer lever be operated from High to 4L or vice versa?
Faults on the
harness wiring of
motor actuator.
Trace this chart
from the start
after repair or
replace.
Internal faults on
transfer case.
Disassemble the
transfer case for
check. Trace this
chart from the
start after repair
or replace.
Faults on the
motor actuator.
Trace this chart
from the start
after or replace.
Go to Step 3
3
Pull out the hoses from vacuum actuator and operate 4WD
switch.
Is there negative pressure on either of hoses?
Go to Step 4
Faults on the
transfer position
switch or its
harness. Trace
this chart from
the start after
repair or replace.
Faults on the
VSV main body,
its harness or
vacuuming
system. Trace
the front axle
diagnosis chart in
this section.
After that, trace
this chart from
the start.
4
Check the axle switch.
Were problems found?
Internal faults on
axle switch.
Trace this chart
from the start
after replace.
Faults on Front
Axle ASM. Trace
the front axle
diagnosis chart in
this section.
After that, trace
this chart from
the start.
Short circuit
(body short) or
disconnection of
the axle harness.
Trace this chart
from the start
after repair or
replace.
4B1–29
DRIVE LINE CONTROL SYSTEM (SHIFT ON THE FLY)
3. Case that indicator’s blinking changes to 4Hz
after aforementioned Solution 4 is carried out.
Step
Action
Yes
No
1
Can the transfer lever be operated from High to 4L or vice versa?
Faults on the
harness wiring of
motor actuator.
Trace this chart
from the start
after repair or
replace.
Faults on the
motor actuator.
Trace this chart
from the start
after replace.
Internal faults on
transfer case.
Disassemble the
transfer case for
check. Trace this
chart from the
start after repair
or replace.
Faults on the
4WD control unit.
Trace this chart
from the start
after replace.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст