Isuzu 2000 Trooper Workshop Manual page 1326

DTC P1312 - ION Sensing Module SEC line 2 Circuit Fault (Cont'd)
Step
10 Replace the ION Sensing module.
Is the action complete?
11 Replace the PCM.
IMPORTANT: The
programmed.
Refer to ON-Vehicle Service in Power Control Module
and Sensors for procedures.
And also refer to latest Service Bulletin. Check to see
if the latest software is released or not.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.
Is the action complete?
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Action
replacement PCM must
Value(s)
— Verify repair
be
— Verify repair
6E–457
Yes No
Go to Step 10
—