Isuzu 1999 RODEO Workshop Manual page 1400

DTC P0123 – TP Sensor Circuit High Voltage (Cont'd)
Step
8 1. Ignition "OFF," disconnect the PCM.
2. Ignition "ON," engine "OFF."
3. Check for a short to B+ on the 5 volt reference "A"
circuit.
4. If the 5 volt reference "A" circuit is shorted, repair it
as necessary.
Was the 5 volt reference "A" circuit shorted?
9 Check for poor electrical connections at the TP sensor
and replace terminals if necessary.
Did any terminals require replacement?
10 1. Ignition "OFF."
2. Disconnect the PCM, and check for an open sensor
ground circuit to the TP sensor.
3. If a problem is found, repair it as necessary.
Was the sensor ground circuit to the TP sensor open?
11 Replace the TP sensor.
Is the action complete?
12 Replace the PCM.
IMPORTANT: The
programmed. Refer
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?
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
Action
replacement PCM must
to On-Vehicle Service
Module and Sensors
Value(s)
— Verify repair
— Verify repair
— Verify repair
— Verify repair
be
in
for
— Verify repair
6E2–157
Yes No
Go to Step 9
Go to Step 11
Go to Step 12
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