Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Service manual — part 633
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–52
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.
D04RY00008
4B2–53
DRIVE LINE CONTROL SYSTEM (TOD)
Step
Action
Yes
No
1
1. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.
Is the continuity established between terminals (B–48)1 and
(B–48)24?
Go to Step 2
The harness is
broken. Repair
the circuit.
Go to Step 3
2
Does the voltage between terminals (B–48)1 and (B–48)24
indicate 0V?
Go to Step 3
The battery is
short-circuited.
Repair the circuit.
Go to Step 4
3
1. Turn off the starter switch.
2. Connect ECU connector.
3. Turn on the starter switch.
4. Set the transfer to the 2H mode.
Is the battery voltage observed between terminals 23 and 46?
The phenomenon
is not reproduced
Refer to
“Troubles
intermittently
observed”.
The ECU has
failed. Replace
the ECU.
Go to Step 4
4
1. Check that all the parts are mounted.
2. Clear the trouble code.
Is this step complete?
Repeat the
“Diagnosis Flow”.
Return to Step 4
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–54
Check flow
Trouble code
Phenomenon
Standard
13
33 (P1762)
The ADC line is short-circuited to
GND.
—
NOTE:
D
The on/off signal line of the shift on the fly system is
short–circuited to GND.
D
The system enters into the fail-safe mode because of
fusing or system protection.
(If a short–circuit is observed on GND, the output to
the on/off signal line becomes 0V.)
D04RY00008
4B2–55
DRIVE LINE CONTROL SYSTEM (TOD)
Step
Action
Yes
No
1
1. Turn off the starter switch.
2. Disconnect the ECU connector from ECU.
Does the resistance between terminals (B–48)1 and (B–48)24
meet the standard, R = 21
±
4 ohms?
The phenomenon
is not
reproduced.
Refer to
“Troubles
intermittently
observed”.
Go to Step 2
2
Is the resistance between terminals (B–48)1 and (B–48)24 R<2
ohms?
The signal line
circuit of the shift
on the fly system
is short-circuited
to GND. Repair
the circuit.
Go to Step 4
Go to Step 3
3
Is the resistance between terminals (B–48)1 and (B–48)24 R=
9
±
7ohms?
The signal line
circuit of the shift
on the fly system
is layer
short-circuited*.
Replace the valve
(VSV).
Go to Step 4
Go to Step 4
4
1. Check that all the parts are mounted.
2. Clear the trouble code.
Is this step complete?
Repeat the
“Diagnosis Flow”.
Return to Step 4
*Layer short-circuit : The coil is damaged by overcurrent.
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