Dtc P0507 - Mazda 6 2002 Workshop Manual

DTC P0507

DTC P0507 Idle control system RPM higher than epected
• Actual idle speed is higher than epected by 200 rpm for 14 s, when brake pedal is depressed (brake
switch is on) and steering wheel is held straight ahead (power steering pressure switch is off).
Note
• If atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg} or intake air temperature is
below -10 ° ° ° ° C {14 ° ° ° ° F}, PCM cancels diagnosis of P0507.
DETECTION
Diagnostic support note
CONDITION
• This is a continuous monitor (CCM).
• MIL illuminates if PCM detects the above malfunction conditions in two consecutive drive cycles or in one
drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in PCM memory.
• IAC valve malfunction
• Accelerator cable misadjusting
POSSIBLE • Actuator cable misadjusting
CAUSE • Throttle valve malfunction
• Vacuum hose misconnection
• PCM malfunction
Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has FREEZE FRAME DATA been recorded?
2 VERIFY RELATED SERVICE INFORMATION
AVAILABILITY
• Check for related Service Information
availability.
• Is any related Service Information available?
3 VERIFY RELATED PENDING OR STORED
DTCS
• Turn ignition key to OFF, then ON (Engine
OFF).
• Verify pending code or stored DTCs using
WDS or equivalent.
• Is other DTC present?
4 INSPECT IAC VALVE MALFUNCTION
• Perform IAC valve inspection.
(See F–13 IDLE AIR CONTROL (IAC) VALVE
INSPECTION.)
• Is IAC valve okay?
5 INSPECT ACCELERATOR CABLE FREE PLAY
• Turn ignition key to OFF.
• Is accelerator cable free play okay?
(See F–16 ACCELERATOR CABLE
INSPECTION/ADJUSTMENT.)
6 INSPECT ACTUATOR CABLE FREE PLAY
• Is actuator cable adjustments okay?
7 INSPECT VACUUM HOSE CONNECTION
• Are vacuum hoses connecting accurately?
(See F–10 VACUUM HOSE ROUTING
DIAGRAM.)
8 VISUAL INSPECT THROTTLE VALVE
• Remove throttle body.
• Is throttle valve fully closed?
ON-BOARD DIAGNOSTIC
INSPECTION
Yes Go to net step.
No Record FREEZE FRAME DATA on repair order, then go to
net step.
Yes Perform repair or diagnosis according to available Service
Information.
• If vehicle is not repaired, go to net step.
No Go to net step.
Yes Repair applicable DTCs.
(See F–67 DTC TABLE.)
No Go to net step.
Yes Go to net step.
No Replace IAC valve, then go to Step 9.
Yes Go to net step.
No Adjust accelerator cable free play, then go to Step 9.
(See F–16 ACCELERATOR CABLE INSPECTION/
ADJUSTMENT.)
Yes Go to net step.
No Adjust actuator cable free play, then go to Step 9.
Yes Go to net step.
No Reconnect vacuum hose accurately, then go to step 9.
Yes Go to net step.
No Clean or replace throttle body, then go to net step.
A6E397001087W04
ACTION
F–147
F