Mazda Mazda6 Workshop Manual Supplement page 373

STEP INSPECTION
3 Connect WDS or equivalent to DLC-2.
Turn engine switch to ON.
Retrieve any DTC.
Is DTC displayed?
4 Inspect adjustment of accelerator position
sensor and idle switch.
(See F2–72 ACCELERATOR POSITION
SENSOR INSPECTION)
(See F2–70 IDLE SWITCH
Are accelerator position sensor and idle switch
adjusted correctly?
5 Inspect adjustment of neutral switch.
(See F2–69 NEUTRAL SWITCH
Is neutral switch adjusted correctly?
6 Visually inspect CMP sensor and teeth of pulse
wheel.
Are CMP sensor and teeth of pulse wheel okay?
7 Inspect fuel injector.
(See F2–56 FUEL INJECTOR
Is fuel injector okay?
8 Verify test results.
• If okay, return to diagnostic index to service any additional symptoms.
• If malfunction remains, replace PCM. (See
End Of Sie
TROUBLESHOOTING
RESULTS
Yes
No
Yes
No
INSPECTION)
Yes
INSPECTION)
No
Yes
No
Yes
INSPECTION)
No
F2–64 PCM
ACTION
DTC is displayed:
Go to appropriate DTC test.
Communication error message is displayed:
Inspect following:
• Open circuit between PCM control relay and PCM
terminal 53 or 79
• Open circuit PCM control relay and PCM terminal
69
• PCM control relay stuck open
• Open or poor GND circuit (PCM terminal 65, 85,
103 or 104)
• Poor connection vehicle body GND
No DTC is displayed:
Go to next step.
Go to next step.
Adjust accelerator position sensor and idle switch
correctly.
(See F2–73 ACCELERATOR POSITION SENSOR
ADJUSTMENT)
(See F2–71 IDLE SWITCH
Go to next step.
Adjust neutral switch correctly.
Inspect following PIDs:
(See F2–65 PCM INSPECTION)
• ECT
• IAT
• MAF
• RPM
If PID value is not as specified, repair or replace
malfunctioning parts.
If PID value is okay, go to next step.
Replace malfunctioning parts.
Inspect following systems:
• Wheels
• Transaxle and mounts
• Driveline
• Suspension
Service as necessary.
Repair or replace as necessary.
REMOVAL/INSTALLATION)
ADJUSTMENT)
F2–221
F2