Isuzu 1999 RODEO Workshop Manual page 1370

DTC P0103 – MAF Sensor Circuit High Frequency
Step
1 Was the "On-Board Diagnostic (OBD) System Check"
performed?
2 1. Ignition "ON," engine "OFF."
2. Review and record Tech 2 Failure Records data.
3. Operate the vehicle within Failure Records
conditions as noted.
4. Using a Tech 2, monitor "DTC" info for DTC P0103.
Does the Tech 2 indicate DTC P0103 failed this
ignition?
3 1. Start the engine.
2. With the engine idling, monitor "MAF Frequency"
display on the Tech 2.
Is "MAF Frequency" above the specified value?
4 1. Ignition "OFF."
2. Disconnect the MAF sensor connector.
3. Ignition "ON," engine idling.
4. Using a Tech 2, monitor "MAF Frequency."
Does the Tech 2 indicate a "MAF Frequency" at the
specified value?
5 Replace the MAF sensor.
Is the action complete?
6 1. Check the MAF harness for incorrect routing near
high voltage components (solenoids, relays,
motors).
2. If incorrect routing is found, correct the harness
routing.
Was a problem found?
7 1. With the engine idling, monitor "MAF Frequency"
display on the Tech 2.
2. Quickly snap open throttle to wide open throttle
while under a road load and record value.
Does the Tech 2 indicate "MAF Frequency" above the
specified value?
8 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?
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
Action
replacement PCM
Refer to On-Vehicle Service in
Module and Sensors
Value(s)
—
—
40 g/s
0 g/s
—
—
40 g/s
must be
for
—
6E2–127
Yes No
Go to OBD
System
Check
Go to Step 2
Refer to
Diagnostic
Go to Step 3 Aids
Go to Step 4 Go to Step 7
Go to Step 5 Go to Step 6
Verify repair Go to Step 8
Verify repair Go to Step 6
Go to Step 5 Go to Step 8
Verify repair —