Isuzu 1999 RODEO Workshop Manual page 1391

6E2–148
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
DTC P0118 – ECT Sensor Circuit High Voltage (Cont'd)
Step
7 1. Ignition "OFF."
2. Disconnect the PCM, and check the ECT sensor
ground circuit for an open.
3. If the ECT sensor ground circuit is open, repair it as
necessary.
Was the ECT sensor ground circuit open?
8 1. Ignition "OFF."
2. Disconnect the PCM, and check the ECT signal
circuit for an open.
3. If the ECT sensor signal circuit is open, repair it as
necessary.
Was the ECT signal circuit open?
9 Check for a poor sensor ground or ECT signal circuit
terminal connection at the PCM and replace
terminal(s) if necessary.
Did any of the terminals need to be replaced?
10 Replace the ECT sensor.
Is the action complete?
11 Replace the PCM.
IMPORTANT: The
programmed.
Powertrain Control
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?
Action
replacement PCM
Refer to On-Vehicle Service in
Module and Sensors
Value(s)
—
—
—
—
must be
for
—
Yes No
Verify repair Go to Step 9
Verify repair Go to Step 9
Go to Step 11
Verify repair
Verify repair —
Verify repair —