Mazda CX-7 2007 Workshop Manual page 152

STEP
4 INSPECT TP SENSOR
• Perform the TP sensor inspection.
(See01-40-32 THROTTLE POSITION (TP)
SENSOR INSPECTION[L3 WITH TC])
• Is the TP sensor normal?
5 INSPECT TP2 SIGNAL CIRCUIT FOR SHORT
TO POWER SUPPLY
• Turn ignition switch to the ON position (Engine
off).
• Measure the voltage between throttle body
terminal C (harness-side) and body ground.
• Is the voltage above 4.9 V?
6 INSPECT TP SENSOR GROUND CIRCUIT FOR
OPEN CIRCUIT
• Inspect for continuity between throttle body
connector terminal D (harness-side) and body
ground.
• Is there continuity?
7 INSPECT PCM CONNECTOR FOR POOR
CONNECTION
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
8 VERIFY TROUBLESHOOTING OF DTC P0223
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine and warm it up completely.
• Is same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
(See01-02-10 AFTER REPAIR
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
End Of Sie
01-02–110
ON-BOARD DIAGNOSTIC [L3 WITH TC]
INSPECTION
Yes Go to the next step.
No Replace the throttle body, then go to Step 8.
Yes Repair or replace for a short to a power supply. Then, go to
Step 8.
No Go to the next step.
Yes Repair or replace for an open circuit between throttle body
terminal D (harness-side) and PCM connector terminal
2AP (harness-side). Then, go to Step 8.
No Go to the next step.
Yes Repair terminal, then go to the next step.
No Go to the next step.
Yes Replace PCM, then go to the next step.
(See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
TC].)
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
No Troubleshooting completed.
ACTION