Isuzu 1999 RODEO Workshop Manual page 922

DTC P0533 A/C Refigerant Pressure Sensor Circuit High Input (Cont'd)
Step
8 1. Ignition OFF.
2. Place a fused jumper between the A/C refrigerant
pressure sensor and the 5 volt signal circuit, both at
the wiring harnesses A/C refrigerant pressure
sensor connector.
3. Ignition ON, Engine OFF.
4. Observe the A/C refrigerant pressure sensor value
displayed on the Tech 2.
Does the Tech 2 read the following value?
9 Check the A/C refrigerant pressure sensor and the
PCM, for the following conditions:
f
An open circuit
f
A short to ground
f
A short to voltage
Was the problem found?
10 1. Ignition OFF.
2. Place a Digital Voltmeter (DVM), set to measure
voltage between the ground circuit and the 5 volt
signal circuit, both at the wiring harnesses A/C
refigerant pressure sensor connector.
3. Ignition ON, Engine OFF.
Does the DVM indicate the following value?
11 Replace the A/C refrigerant pressure sensor.
Verify Repair.
12 Replace the PCM.
IMPORTANT: The
programmed. Refer to On–Vehicle Service in
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.
Verify repair.
RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION
Action
replacement PCM must
Module and Sensors
Value(s)
about 5 volts Go to Step 9
— Verify repair
Go to Step 11
about 5 volts
—
be
for
—
6E1–295
Yes No
Go to Step 12
Go to Step 10
Go to Step 12
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