DTC P0192:00 [MZR-CD 2.2]

id0102f3147700

DTC P0192:00

Fuel pressure sensor circuit low input
DETECTION CONDITION
•  The PCM monitors the input voltage from the fuel pressure sensor while the engine is running. If the input voltage from the fuel pressure sensor is less than 0.57 V, the PCM determines there is a malfunction in the fuel pressure sensor circuit.
Monitoring condition
•  Battery voltage: 8—20 V
Diagnostic support note
•  The MIL illuminates if the PCM detects the above malfunction condition in first drive cycle.
•  PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA is available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  Fuel pressure sensor connector or terminal malfunction
•  Short to ground in wiring harness between fuel pressure sensor terminal B and PCM terminal 1BJ
•  Short to ground in wiring harness between fuel pressure sensor terminal C and PCM terminal 1CH
•  Open circuit in wiring harness between fuel pressure sensor terminal C and PCM terminal 1CH
•  Fuel pressure sensor malfunction
•  PCM connector or terminal malfunction
•  Open circuit in wiring harness between fuel pressure sensor terminal B and PCM terminal 1BJ
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform the repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY CURRENT SIGNAL STATUS: IS CONCERN INTERMITTENT OR CONSTANT?
•  Connect the M-MDS to the DLC-2.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine.
•  Is the PENDING CODE for this DTC present?
Yes
Go to the next step.
No
Intermittent concern exists.
Perform the “INTERMITTENT CONCERN TROUBLESHOOTING”.
(See INTERMITTENT CONCERN TROUBLESHOOTING [MZR-CD 2.2].)
4
INSPECT FUEL PRESSURE SENSOR CONNECTOR FOR POOR CONNECTION
•  Switch the ignition to off.
•  Inspect for poor connection (such as damaged/pulled-out terminals, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the suspected terminal, go to Step 10.
No
Go to the next step.
5
INSPECT FUEL PRESSURE SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND
•  Switch the ignition to off.
•  Inspect for continuity between the following terminals and body ground:
―  Fuel pressure sensor terminal C
―  Fuel pressure sensor terminal B
•  Is there continuity?
Yes
Repair or replace the wiring harness for a short to ground, go to Step 10.
No
Go to the next step.
6
INSPECT FUEL PRESSURE SENSOR POWER CIRCUIT FOR OPEN CIRCUIT
•  Switch the ignition to ON (Engine off).
•  Inspect the voltage at fuel pressure sensor terminal C (wiring harness side).
•  Is the voltage less than 0.57 V?
Yes
Repair or replace the wiring harness for an open circuit, go to Step 10.
No
Go to the next step.
7
INSPECT FUEL PRESSURE SENSOR
•  Inspect the fuel pressure sensor.
•  Is there any malfunction?
Yes
Repair the common rail, go to Step 10.
(See COMMON RAIL REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
8
INSPECT PCM CONNECTOR FOR POOR CONNECTION
•  Switch the ignition to off.
•  Inspect for poor connection (such as damaged/pulled-out terminals, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the suspected terminal, go to Step 10.
No
Go to the next step.
9
INSPECT FUEL PRESSURE SENSOR CIRCUIT FOR OPEN
•  Switch the ignition to off.
•  Inspect for continuity between fuel pressure sensor terminal B and PCM terminal 1BJ.
•  Is there continuity?
Yes
Repair or replace the wiring harness for an open circuit, then go to the next step.
No
Go to the next step.
10
VERIFY TROUBLESHOOTING OF DTC P0192:00 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine.
•  Is the PENDING CODE for this DTC present?
Yes
Replace the PCM, go to the next step.
(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
11
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR-CD 2.2].)
No
DTC troubleshooting completed.