Opel Frontera UE. Manual - part 1328

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–52

Table 1

Unit: V

AT selector position

Voltage between

terminal 28 and 47

Voltage between

terminal 41 and 47

Voltage between

terminal 27 and 47

P

12

0

0

R

12

12

0

N

0

12

0

D

0

12

12

3

12

12

12

2

12

0

12

1

0

0

12

Table 2

Continuity between terminals of inhibitor switch connector (E–41)

AT selector position

Continuity between

terminal 8(A) and 5(D)

Continuity between

terminal 7(B) and 5(D)

Continuity between

terminal 6(C) and 5(D)

P

YES

NO

NO

R

YES

YES

NO

N

NO

YES

NO

D

NO

YES

YES

3

YES

YES

YES

2

YES

NO

YES

1

NO

NO

YES

SECTION

4B2–53

DRIVE LINE CONTROL SYSTEM (TOD)

Check flow

Trouble code

Phenomenon

Standard

9

31

The electromagnetic coil is broken

or shorted to the battery or GND

—

P1721

or shorted to the battery or GND.

D04R100007

SECTION

DRIVE LINE CONTROL SYSTEM (TOD)

4B2–54

Step

Action

Yes

No

1

1. Clear the trouble code.
2. Start the engine
3. Set the TOD mode.

Is there DTC31 (P1721)?

Go to 

Step 2

Refer to 

“Trouble

intermittently

observed”.

2

1. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.

Is the continuity established between terminals (C–59)11 and
(C–59)22?

Go to 

Step 3

Go to 

Step 5

3

1. Connect the ECU connector.
2. Start the engine.
3. Set the TOD mode.

Does the voltage between terminals 11 and 22 indicate at least
0.4V?

Go to 

Step 4

Go to 

Step 6

4

Is the battery voltage always observed between terminals 11 and
22?

The harness is

short–circuited on

the battery.

Repair the circuit.

Go to 

Step 8

Go to 

Step 6

5

1. Disconnect the A–1 connector.

Is the continuity established between transfer connector
terminals (A–1)8 and (A–1)7?

The harness is
broken. Repair

the circuit.

Go to 

Step 8

Replace the

transfer

electromagnetic

coil (solenoid

clutch).

Go to 

Step 8

6

1. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.

Is the resistance between the connector (C–59) terminal 11 and
22   1.0 

∼

 5.0

W

?

The ECU has

failed. Replace

the ECU 

Go to 

Step 8

Go to 

Step 7

7

Is the resistance between the transfer connector (A–1) terminal 8
and 7   1.0 

∼

 5.0

W

?

The harness is

disconnection or

short to GND.

Repair the circuit.

Go to 

Step 8

Replace the

transfer

electromagnetic

coil (solenoid

clutch).

Go to 

Step 8

8

1. Check that all the parts are mounted.
2. Clear the trouble code.

Is this step complete?

Repeat the

“Diagnosis Flow”.

Return to Step 8

SECTION

4B2–55

DRIVE LINE CONTROL SYSTEM (TOD)

Check flow

Trouble code

Phenomenon

Standard

10

28

The shift on the fly system (front

axle disconnect) works incorrectly

—

P1760

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.

D04R100013

SECTION