| Mazda P0120
Mazda P0121 Mazda P0220 Mazda P0221 Mazda P193B |
Accelerator pedal position (APP) sensor circuit malfunction |
|---|---|
|
DETECTION CONDITION
|
• CAN signal error
|
|
POSSIBLE CAUSE
|
• APP sensor malfunction
• Connector or terminal malfunction
• CAN system malfunction
• Instrument cluster malfunction
• PCM malfunction
|
Diagnostic procedure
| STEP | INSPECTION | ACTION | |
|---|---|---|---|
|
1
|
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has the 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 REPAIR INFORMATION AVAILABILITY
• Verify related service repair information availability.
• Is any related repair information available?
|
Yes
|
Perform repair or diagnosis according to the available repair 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.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Is the same DTC present?
|
Yes
|
Go to the next step.
|
|
No
|
Intermittent concern exists.
Perform the “INTERMITTENT CONCERNS TROUBLESHOOTING”.
|
||
|
4
|
INSPECT CAN SYSTEM
• Inspect CAN system.
• Is there any malfunction?
|
Yes
|
Repair the CAN system, then go to Step 7.
|
|
No
|
Go to the next step.
|
||
|
5
|
INSPECT INSTRUMENT CLUSTER
• Inspect the instrument cluster.
• Is there any malfunction?
|
Yes
|
Go to the next step.
|
|
No
|
Replace the instrument cluster, then go to Step 7.
|
||
|
6
|
INSPECT APP SENSOR
• Inspect the APP sensor.
• Is there any malfunction?
|
Yes
|
Replace the APP sensor, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
7
|
VERIFY THAT DTC P0120, P0121, P0220, P0221 AND/OR P193B TROUBLESHOOTING IS COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Is the same DTC present?
|
Yes
|
Replace the PCM, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
8
|
VERIFY AFTER REPAIR PROCEDURE
• Perform the after repair procedure.
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
|
|
No
|
DTC troubleshooting completed.
|
||