Opel Frontera UBS. Service manual — part 1979
4B2–63
DRIVE LINE CONTROL SYSTEM (TOD)
Check flow
Trouble code
Phenomenon
Standard
11
28
(P1760)
The shift on the fly system (front
axle disconnect) works incorrectly.
—
NOTE: The shift on the fly system is not changed
between 2WD and 4WD modes normally.
CAUTION: If code 32 or 33 is also observed, remove
the trouble associated with code 32 or 33 first.
D04RY00061
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–64
D04RY00062
4B2–65
DRIVE LINE CONTROL SYSTEM (TOD)
Step
Action
Yes
No
1
1. Turn on the starter switch.
2. Set the transfer to the 2H mode.
Is the battery voltage observed between terminals 5 and 19?
Go to Step 2
Go to Step 5
2
Is 5V observed between terminals 10 and 19?
Go to Step 3
Go to Step 6
3
1. Set the transfer to the high (TOD) mode.
Does the voltage between terminals 5 and 19 indicate 0V?
Go to Step 4
The ECU has
failed. Replace
the ECU.
Go to Step 7
4
Does the voltage between terminals 10 and 19 indicate 0V?
The phenomenon
is not
reproduced.
Refer to
“Troubles
intermittently
observed”.
The shift on the
fly system is
failed (refer to
Section 4B and
4C of Chassis
Repair Manual).
5
Does the TOD indicator show the 2H mode?
The ECU has
failed. Replace
the ECU.
Go to Step 7
See “Trouble
Diagnosis
Depending on
The Status of
TOD Indicator”.
6
Set the transfer to the high (TOD) mode.
Does the voltage between terminals 5 and 19 indicate 0V?
The shift on the
fly system has
failed (refer to
Section 4B1 and
4C of Chassis
Repair Manual).
The ECU has
failed. Replace
the ECU.
Go to Step 7
7
1. Check that all the parts are mounted.
2. Clear the trouble code.
Is this step complete?
Repeat the
“Diagnosis Flow”.
Return to Step 7
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–66
Check flow
Trouble code
Phenomenon
Standard
12
32
(P1761)
The on/off signal (ADC) line of the
shift on the fly system (front axle
disconnect) is broken, or the line is
short-circuited to the battery.
—
NOTE: The on/off signal line of the shift on the fly system
is broken, or the line is short–circuited to the battery.
D04RY00061
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