Isuzu 2000 Trooper Workshop Manual page 1299

6E–430
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P1273 – APS 1 – 3 Correlation Error (Cont'd)
Step
9 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 ornot.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replasement PCM.
Is the action complete?
Action
replacement PCM must
Value(s)
be
— Verify repair
Yes No
—