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Opel Frontera UE. Manual - part 1337
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–88
Step
Action
Yes
No
1
1. Turn on the starter switch.
2. The car stops, the AT selector is the N position, and the brake
is applied.
When the TOD switch is changed to the TOD (or 2H) position, is
12V observed between terminals 44 and 47 (4L switch)?
Go to
Step 2
Go to
Step 4
2
1. The car stops, the AT selector is the N position, and the brake
is applied.
When the TOD switch is changed to the 4L position, does the
transfer become the 4L state?
Go to
Step 3
Refer to
“Diagnosis from
symptom”.
3
Is 0V observed between the terminal 44 and 47?
The ECU has
failed. Replace
the ECU.
Go to
Step 10
Go to
Step 4
4
1. The car stops, the AT selector is the N position, and the brake
is applied.
When the TOD switch is changed to the TOD (or 2H) position, is
12V observed between the connector (C–60) terminal 22 and 25?
Go to
Step 5
Go to
Step 6
5
1. Turn off the starter switch and connect the EUC connector.
2. The car stops, the AT selector is the N position, and the brake
is applied.
When the TOD switch is changed to the 4L position, is 0V
observed between terminals (C–60) 22 and (C–60) 25 (4L
switch)?
The phenomenon
is not
reproduced.
Refer to
“Trouble
intermittently
observed”.
Go to
Step 6
6
1. Turn off the starter switch and connect ECU connector.
2. Turn on the starter switch.
3. The car stops, the AT selector is the N position, and the brake
is applied.
4. Change the TOD switch to the TOD (or 2H) position.
5. After the transfer has changed to the TOD (or 2H) mode, turn
off the starter switch and disconnect the ECU connector
(C–60).
Is there the continuity between the connector (C–60) terminal 22
and 25?
Go to
Step 9
Go to
Step 7
7
1. Turn off the starter switch and connect the ECU connector.
2. Turn on the starter switch.
3. The car stops, the AT selector is the N position, and the brake
is applied.
4. Change the TOD switch to the 4L position.
5. After the transfer has changed to the 4L mode, turn off the
starter switch.
6. Disconnect the ECU connector.
Is there the continuity between the connector (C–60) terminal 22
and 25?
The phenomenon
is not
reproduced.
Refer to
“Trouble
intermittently
observed”.
Go to
Step 8
8
1. Turn off the starter switch and connect the ECU connector.
2. Turn on the starter switch.
3. The car stops, the AT selector is the N position, and the brake
is applied.
4. Change the TOD switch to the TOD (or 2H) position.
5. After the transfer has changed to the TOD (or 2H) mode, turn
off the starter switch.
6. Disconnect the transfer connector (A–1).
Is there the continuity between the connector terminal (A–1) 12
and GND?
Repair the
transfer.
Go to
Step 10
Repair the circuit
between (C–60)
22 and (A–1) 12.
Go to
Step 10