Isuzu 4HL1 Workshop Manual page 167

Step
Check the neutral (P/N) switch circuit for
short.
1. Starter switch "OFF", and disconnect the
VIM.
2. Disconnect the neutral switch connector.
5
3. Starter switch "ON".
4. Measure
connector pin and ground (e.g., frame or
body)
Was the voltage within range?
Replace the neutral (P/N) switch.
6
Is the action complete?
Repair or replace the faulty harness.
7
Is the action complete?
Review the DTC.
1. Certainly connect the neutral (P/N) switch
and VIM connectors.
8
2. Using Tech 2, clear the DTC.
3. Perform test run and review the DTC.
Is DTC82 detected?
1. Replace the VIM.
IMPORTANT:
If necessary (for the vehicle equipped with
9
idle stop function), input the number of
startups to the replacing VIM.
Is the action complete?
Check DTC82 will not be set again.
1. Using Tech 2, clear the DTC.
10
2. Perform test run and review the DTC.
Is DTC82 detected?
Action
the voltage between
Value(s)
Pins 44-
ground: 0 V
VIM
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Engine Control System 1A-165
Yes
Go to Step 6
Verify repair and
go to Step 10
Verify repair and
go to Step 10
Go to Step 9 Diagnostic Aids
Verify repair and
go to Step 10
Refer to
Diagnostic Aids
and go to Step 2
No
Go to Step 7
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Refer to
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Repair is
complete