Mazda Mazda6 - Dtc P0221

ON-BOARD DIAGNOSTIC
F2–131
F2
DTC P0221
A6E407001082225
Diagnostic procedure
End Of Sie
DTC P0221 Accelerator position sensor No.2 circuit performance problem
DETECTION
CONDITION
• PCM monitors input voltage from accelerator position sensor No.1 and accelerator position sensor No.2
while engine is running. If voltage difference exceeds 0.9 V, PCM determines accelerator position sensor
No.2 circuit performance problem.
POSSIBLE
CAUSE
• Accelerator position sensor malfunction
• Connector or terminal malfunction
• Accelerator position sensor misadjustment
• PCM malfunction
STEP INSPECTION ACTION
1 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Information
availability.
• Is any related repair information available?
Yes Perform repair or diagnosis according to available Service
Information.
• If vehicle is not repaired, go to next step.
No Go to next step.
2 INSPECT POOR CONNECTION OF
ACCELERATOR POSITION SENSOR
CONNECTOR
• Turn engine switch to OFF.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
Yes Repair or replace suspected terminal, go to Step 5.
No Go to next step.
3 INSPECT ACCELERATOR POSITION SENSOR
• Turn engine switch to OFF.
• Inspect accelerator position sensor.
(See F2–72 ACCELERATOR POSITION
SENSOR INSPECTION)
• Is there any malfunction?
Yes Adjust or replace accelerator position sensor, go to Step 5.
(See F2–73 ACCELERATOR POSITION SENSOR
ADJUSTMENT)
(See F2–44 ACCELERATOR PEDAL COMPONENT
DISASSEMBLY/ASSEMBLY)
No Go to next step.
4 INSPECT POOR CONNECTION OF PCM
CONNECTOR
• Turn engine switch to OFF.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
Yes Repair or replace suspected terminal, go to next step.
No Go to next step.
5 VERIFY TROUBLESHOOTING OF DTC P0221
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from PCM memory using WDS or
equivalent.
• Start engine.
• Is same DTC present?
Yes Replace PCM, go to next step.
(See F2–64 PCM REMOVAL/INSTALLATION)
No Go to next step.
6 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See F2–86 AFTER REPAIR PROCEDURE)
• Is there any DTC present?
Yes Go to applicable DTC inspection.
(See F2–87 DTC TABLE)
No Troubleshooting completed.