DTC P0204:00 [MZR-CD (RF Turbo)]

id0102f1148200

DTC P0204:00

Fuel injector No.4 operation identified
DETECTION CONDITION
•  The PCM monitors each cylinder fuel injector control signal current while the engine is running. If the PCM detects control signal current less than 18.5 A for 12 times, the PCM determines that the fuel injector No.4 operation is not verified.
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
•  Connector or terminal malfunction
•  Fuel injector No.4 malfunction
•  Short to ground in wiring between fuel injector No.4 terminal A and PCM terminal 4
•  Short to ground in wiring between fuel injector No.4 terminal B and PCM terminal 40
•  Open circuit in wiring between fuel injector No.4 terminal B and PCM terminal 40
•  Open circuit in wiring between fuel injector No.4 terminal A and PCM terminal 4
•  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
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to available Service Information.
•  If 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 same DTC present?
Yes
Go to the next step.
No
Intermittent concern exists.
Perform the “INTERMITTENT CONCERN TROUBLESHOOTING”.
(See INTERMITTENT CONCERN TROUBLESHOOTING [MZR-CD (RF Turbo)].)
4
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
•  Is DTC P0204:00 on FREEZE FRAME DATA?
Yes
Go to the next step.
No
Go to the troubleshooting procedures for the DTC in the FREEZE FRAME DATA.
5
INSPECT FUEL INJECTOR NO.4 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, then go to Step 10.
No
Go to the next step.
6
INSPECT FUEL INJECTOR FOR SHORT TO GROUND
•  Switch the ignition to off.
•  Disconnect fuel injector No.4 connector.
•  Inspect for continuity between the following fuel injector No.4 terminals and body ground.
―  Terminal A (wiring harness-side)
―  Terminal B (wiring harness-side)
•  Is there continuity?
Yes
Repair or replace the wiring harness for a short to ground, then go to Step 10.
No
Go to the next step.
7
INSPECT FUEL INJECTOR
•  Inspect the fuel injector No.4.
•  Is there any malfunction?
Yes
Replace fuel injector No.4, then go to Step 10.
(See FUEL INJECTOR REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
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, then go to Step 10.
No
Go to the next step.
9
INSPECT FOR OPEN CIRCUIT BETWEEN FUEL INJECTOR AND PCM
•  Switch the ignition to off.
•  PCM and fuel injector No.4 connector disconnected.
•  Inspect for continuity between fuel injector No.4 (wiring harness-side) and PCM at following wiring harness-side connector.
―  PCM terminal 4 and fuel injector No.4 terminal A
―  PCM terminal 40 and fuel injector No.4 terminal B
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for an open circuit, then go to the next step.
10
VERIFY TROUBLESHOOTING OF DTC P0204:00 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC using the M-MDS.
•  Start the engine.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
No
Go to the next step.
11
VERIFY AFTER REPAIR PROCEDURE
•  Perform the Repair Verification Drive Mode.
•  Are any DTCs present?
Yes
Go to the applicable DTC troubleshooting.
(See DTC TABLE [MZR-CD (RF Turbo)])
No
Troubleshooting completed.