Mazda 6 - Dtc P0202

F2–98
ON-BOARD DIAGNOSTIC
End Of Sie
DTC P0202
B6E407000200103
12 INSPECT PCM CONNECTOR FOR POOR
CONNECTION
• Turn the engine switch 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
14.
No Go to the next step.
13 INSPECT FOR OPEN CIRCUIT BETWEEN IDM
AND PCM
• Turn the engine switch off.
• Inspect for continuity between IDM terminal 2C
(wiring harness-side) and PCM terminal 42
(wiring harness-side).
• 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.
14 VERIFY TROUBLESHOOTING OF DTC P0201
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC using the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
Yes Replace the PCM, then go to the next step.
No Go to the next step.
15 VERIFY AFTER REPAIR PROCEDURE
• Perform the Repair Verification Drive Mode.
(See F2–39 OBD DRIVE MODE.)
• Are any DTCs present?
Yes Go to the applicable DTC troubleshooting.
(See F2–40 DTC TABLE.)
No Troubleshooting completed.
STEP INSPECTION ACTION
DTC P0202 Fuel injector No.2 operation identified
DETECTION
CONDITION
• The PCM monitors each cylinder injection confirmation signal from the IDM while the engine is running. If
the PCM does not receive the injection confirmation signal for No.2 cylinder normally, the PCM determines
that the fuel injector No.2 operation is not verified.
Diagnostic support note
• The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
POSSIBLE
CAUSE
• IDM malfunction
• Connector or terminal malfunction
• Short to GND in wiring harness between IDM terminal 2F and PCM terminal 43
• Short to power supply in wiring harness between IDM terminal 2F and PCM terminal 43
• Open circuit in wiring harness between IDM terminal 2F and PCM terminal 43
• Fuel injector No.2 malfunction
• Short to GND in wiring harness between fuel injector No.2 terminal B and IDM terminal 1G
• Short to power supply in wiring harness between fuel injector No.2 terminal B and IDM terminal 1G
• Open circuit in wiring harness between fuel injector No.2 terminal B and IDM terminal 1G
• PCM malfunction