Isuzu 4HL1 Workshop Manual page 117

Step
Check DTC24 will not be set again.
1. Using Tech 2, clear the DTC.
14
2. Perform test run and review the DTC.
Is DTC24 detected?
Switch Description
Legend
1. Idle position switch
2. AP sensor
3. Sensor ground
Action
1
Engine Control System 1A-115
Value(s)
—
Diagnostic Aids
and go to Step 2
2
4. Sensor signal
5. Sensor power
Yes
Refer to
Repair is
complete
3
4
5
LNW21ASF003001
No