Dtc P0122 - Mazda Mazda6 Workshop Manual Supplement

STEP
5 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?
6 VERIFY TROUBLESHOOTING OF DTC P0121
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from PCM memory using WDS or
equivalent.
• Start engine.
• Is same DTC present?
7 VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
(See F2–86 AFTER REPAIR
• Is there any DTC present?
End Of Sie

DTC P0122

DTC P0122 Accelerator position sensor No.1 circuit low input
• PCM monitors input voltage from accelerator position sensor No.1 while engine is running. If input voltage
DETECTION
from accelerator position sensor No.1 is below 0.3 V, PCM determines accelerator position sensor No.1
CONDITION
circuit low input.
• Accelerator position sensor No.1 malfunction
• Connector or terminal malfunction
• Open circuit in wiring between accelerator position sensor terminal A and PCM terminal 90
POSSIBLE
• Short to GND in wiring between accelerator position sensor terminal B and PCM terminal 10
CAUSE
• Accelerator position sensor No.1 signal and GND circuits short each other
• PCM malfunction
ACCELERATOR POSITION SENSOR NO.1
ACCELERATOR POSITION SENSOR
HARNESS SIDE CONNECTOR
F2–116
ON-BOARD DIAGNOSTIC
INSPECTION
PROCEDURE)
A
6
B
D
C B A
D
Yes Repair or replace suspected terminal, go to next step.
No Go to next step.
Yes Replace PCM, go to next step.
(See F2–64 PCM
No Go to next step.
Yes Go to applicable DTC inspection.
(See F2–87 DTC
No Troubleshooting completed.
3
90
4 5
10
5
91
HARNESS SIDE CONNECTOR
ACTION
REMOVAL/INSTALLATION)
TABLE)
PCM
PCM
91 10
90
A6E407001082217