Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Service manual — part 118
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–90
Chart D–2
The 4L switch circuit is short-circuited to GND.
Function of circuit
—
Fail condition
When the TOD switch is changed to the 2H or TOD position, the indicator 2H or TOD
mode goes on and off.
Indicator lamp state
TOD switch position
2H or TOD
4B2–91
DRIVE LINE CONTROL SYSTEM (TOD)
D04R200022
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–92
Step
Action
Yes
No
1
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 terminals 44 and 47 (4L switch)?
Go to
Step 2
Go to
Step 3
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, is 0V
observed between terminals 44 and 47 (4L switch)?
Refer to
“Trouble
intermittently
observed”.
Go to
Step 3
3
1. The car stops, the AT selector is the N position, and the brake
is applied.
2. Select the TOD switch to the TOD (or 2H) position.
Is there the continuity between the connector (C–37) terminal 22
and 25?
Go to
Step 5
Go to
Step 4
4
1. Connect the ECU connector (C–37) and turn on the starter
switch.
2. The car stops, the AT selector is the N position, and the brake
is applied.
3. Select the TOD switch to the 4L position.
4. Turn off the starter switch and disconnect the ECU connector
(C–37).
Is there the continuity between the connector (C–37) terminal 22
and 25?
The ECU has
failed.Replace
the ECU.
Go to
Step 9
Go to
Step 5
5
1. Connect the ECU connector (C–37) and turn on the starter
switch.
2. The car stops, the AT selector is the N position, and the brake
is applied.
3. Select the TOD switch to the TOD (or 2H) position.
4. Turn off the starter switch and disconnect the connector (H–7).
Is there the continuity between the connector terminal (H–7) 5 and
(C–37) 25?
Go to
Step 7
Go to
Step 6
6
1. Connect the connector (H–7) and turn on the starter switch.
2. The car stops, the AT selector is the N position, and the brake
is applied.
3. Select the TOD switch to the 4L position.
4. After the transfer has changed to the 4L mode, turn off the
starter switch and disconnect the connector (H–7).
Is there the continuity between the connector terminal (H–7) 5 and
(C–37) 25?
Go to
Step 7
GND is
short-circuited
between
terminals (C–37)
2 and (H–7) 5.
Repair the circuit.
Go to
Step 9
7
1. Connect the connector (H–7) and turn on the starter switch.
2. The car stops, the AT selector is the N position, and the brake
is applied.
3. Select the TOD switch to the TOD (or 2H) position.
4. After the transfer has changed to the TOD (or 2H) mode, turn
off the starter switch and disconnect the connector (A–1).
Is there the continuity between the connector terminal (A–1) 12
and GND?
Repair the
transfer.
Go to
Step 9
Go to
Step 8
4B2–93
DRIVE LINE CONTROL SYSTEM (TOD)
Step
No
Yes
Action
8
1. Connect the connector (A–1) and turn on the starter switch.
2. The car stops, the AT selector is the N position, and the brake
is applied.
3. Select the TOD switch to the 4L position.
4. After the transfer has changed to the 4L mode, disconnect the
connector (A–1).
Is there the continuity between the connector terminal (A–1) 12
and GND?
GND is
short-circuited
between
terminals (A–1)
12 and (H–7) 5.
Repair the circuit.
Go to
Step 9
Repair the
transfer.
Go to
Step 9
9
Check that all the parts are mounted.
Is this step complete?
Verify the repair.
Go to
Step 9
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