Isuzu N 2008 Series Workshop Manual page 323

1A-320 Engine Control System (4JJ1)
Step
1. Reconnect
components, fuse or harness connector(s).
2. Start the engine.
3. Observe
23
parameter with a scan tool.
Does the scan tool indicate ON and OFF with each
switch transition?
Action
all previously disconnected
the DPD Regeneration Switch
Value(s) Yes
—
Go to Step 4
No
Go to Step 15