Isuzu Trooper (2000 year). Service manual — part 106
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–44
Check flow
Trouble code
Phenomenon
Standard
9
31
The electromagnetic coil is broken.
—
D04RY00008
4B2–45
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–49)11 and
(B–49)22?
Go to Step 2
Go to Step 4
2
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 3
The ECU has
failed. Replace
the ECU.
Go to Step 5
3
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 5
The phenomenon
is not
reproduced.
Refer to
“Troubles
intermittently
observed”.
Go to Step 4
4
1. Disconnect the M–27 connector.
Is the continuity established between transfer connector
terminals (M–27)8 and (M–27)7?
The harness is
broken. Repair
the circuit.
Go to Step 5
Replace the
transfer
electromagnetic
coil (solenoid
clutch).
Go to Step 5
5
1. Check that all the parts are mounted.
2. Clear the trouble code.
Is this step complete?
Repeat the
“Diagnosis Flow”.
Return to Step 5
DRIVE LINE CONTROL SYSTEM (TOD)
4B2–46
Check flow
Trouble code
Phenomenon
Standard
10
26
The electromagnetic coil GND is
short-circuited.
Resistance: 1.0 to 5.0 ohm (at ordi-
nary temperature)
D04RY00008
4B2–47
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–49)11 and (B–49)22
indicate 1.0 to 5.0 ohm?
Go to Step 2
Go to Step 3
2
1. Connect the ECU connector.
2. Start the engine.
3. Set the TOD mode.
When the throttle is operated between full close and full open
positions, does the voltage between terminals 11 and 22 indicate
at least 0.1 to 1.0 V?
The phenomenon
is not
reproduced.
Refer to
“Troubles
intermittently
observed”.
Go to Step 4
The ECU has
failed. Replace
the ECU.
Go to Step 4
3
Does the resistance between transfer connector terminals
(M–27)8 and (M–27)7 indicate 1.0 to 5.0ohm?
The harness is
broken. Repair
the circuit.
Go to Step 4
Replace the
transfer
electromagnetic
coil.
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
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