Isuzu 1999 RODEO Workshop Manual page 900

DTC P0462 Fuel Level Sensor Circuit Low Input
Step
1 Was the On–Board Diagnostic (OBD) System Check
performed?
2 1. Install the Tech 2.
2. Ignition ON.
3. Observe the fuel level on the Tech 2.
Does the Tech 2 display the specified value?
3 Refer to Fuel Gauge Diagnosis.
4 With a Digital Voltmeter (DVM) to ground, probe the
fuel level sensor input at the Fuel Level sensor.
Is the voltage less than the specified value?
5 Check for a open in the fuel level sensor input circuit.
Was a problem found?
6 With a DVM to ground, probe the fuel level module
output at the Fuel Level sensor.
Is the voltage greater than the specified value?
7 Repair the open in the fuel level sensor input circuit.
Is the action complete?
8 Repair the open in the fuel level output circuit.
Is the action complete?
9 Repair the short to voltage in the fuel level output
circuit.
Is the action complete?
10 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?
11 1. Using the Tech 2, select the DTC and the Clear Info.
2. Start the engine.
3. Idle at the normal operating temperature.
4. Select the Diagnostic Trouble Code and the
Specific.
5. Enter the number which was set.
6. Operate the vehicle within the conditions for setting
this Diagnostic Trouble Code as specified in the
supporting text.
Does the Tech 2 indicate that this diagnostic Ran and
Passed?
RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION
Action
replacement PCM
Refer to On–Vehicle Service in
Module and Sensors
Value(s)
—
0%–1%
—
0.13 V
—
2.9 V
—
—
—
must be
for
—
—
6E1–273
Yes No
Go to
Powertrain
OBD System
Go to Step 2 Check
Go to Step 4 Go to Step 3
— —
Go to Step 5 Go to Step 6
Go to Step 7 Go to Step 6
Go to Step
Go to Step 9
10
Go to Step
—
11
Go to Step
—
11
Go to Step
—
11
Go to Step
—
11
System OK Go to Step 2