Isuzu 2000 Trooper Workshop Manual page 452

Table of Contents

Advertisement

4B2–74
DRIVE LINE CONTROL SYSTEM (TOD)
Step
1
Start the engine.
When the transfer lever is shifted to the neutral position between
high and 4L, is the battery voltage observed between terminals 42
and 46?
2
When the transfer lever is shifted to the high position and 4WD
Auto switch selected to 4WD position, is 0V observed between
terminals 42 and 46?
3
When the transfer lever is shifted to the 4L position, is 0V
observed between terminals 42 and 46?
4
Shift the transfer lever to the 4L position.
Is 0V observed between terminals 17 and 46?
5
Is 0V observed between terminals 6 and 46?
6
Is 0V observed between terminals 18 and 46?
7
When the transfer lever is shifted to the high position and 4WD
Auto Switch selected to the 2WD position, is the battery voltage
observed between terminals 23 and 46?
8
When the transfer lever is shifted to the neutral position between
high and 4L, is the battery voltage observed between terminals 23
and 46?
9
When the transfer lever is shifted to the high position (TOD mode),
is 0V observed between terminals 23 and 46?
10
When the transfer lever is shifted to the 4L position, is 0V
observed between terminals 23 and 46?
11
Is any of the trouble codes 28, 32 and 33 recorded?
12
1. Turn off the starter switch.
2. Disconnect the ECU connector.
Does the resistance between terminals (B–48)1 and (B–48)24
meet the standard, 17< R < 25 ohm?
13
1. Turn on the starter switch.
When the 4WD Auto Switch is select to the 2WD position, is the
battery voltage supplied to each VSV?
14
When the transfer lever is shifted to the neutral position between
high and 4L, is the battery voltage supplied to each VSV?
Action
Yes
Go to Step 2
Go to Step 7
Go to Step 3
Go to Step 7
Go to Step 4
Go to Step 7
The ECU has
failed. Replace
Go to Step 5
Go to Step 19
The ECU has
failed. Replace
Go to Step 6
Go to Step 19
The phenomenon
is not
reproduced.
Refer to
"Troubles
The ECU has
intermittently
failed. Replace
observed".
Go to Step 19
Go to Step 19
Go to Step 8
Go to Step 11
Go to Step 9
Go to Step 11
Go to Step 10
Go to Step 11
Go to Step 12
Go to Step 11
Examine the
trouble based on
The ECU has
"Diagnosis from
failed. Replace
Trouble Codes".
Go to Step 19
Go to Step 19
Repair the circuit
of replace the
Go to Step 13
Go to Step 19
Repair the circuit
of replace the
Go to Step 14
Go to Step 19
Repair the circuit
of replace the
Go to Step 15
Go to Step 19
No
the ECU.
the ECU.
the ECU.
the ECU.
VSV.
VSV.
VSV.

Advertisement

Table of Contents
loading

Table of Contents