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SYMPTOM TROUBLESHOOTING [L3 WITH TC] 01-03–25 01-03 2007 Mazda CX-7 Workshop Manual (1871–1U–06B) Revised 10/2006 (Ref. No. R144/06) 13 Turn the ignition switch to the ON position. Yes Go to the next step. No Repair or replace the wiring harness. 14 Inspect the following wiring harnesses and • Between keyless CM terminal 3W and PCM 1AI • Between keyless CM terminal 3X and PCM 1AM Is there any malfunction (open or short circuit, Yes Repair or replace malfunctioning part. No Go to the next step. 15 Turn the ignition switch off. Yes Go to the next step. No Repair or replace the wiring harness. 16 Inspect for the following: • Fuel quality (proper octane, contamination, winter/summer blend) • Intake-air system leakage and restriction • Electrical connectors • Poor connection for PCM ground and body ground • Fuel leakage • Vacuum leakage Are all items normal? Yes Go to the next step. No Service if necessary. 17 Perform the self-test function using M-MDS. Yes DTC is displayed: No No DTC is displayed: 18 Access the ECT PID using the M-MDS. °C {241 °F} during driving. Yes Go to the next step. No The cause of this concern could from be cooling 19 Access the VPWR PID. Yes Go to the next step. No Repair or replace the wiring harness between main 20 Perform the A/C Cut-off Operation Inspection. Yes Go to the next step. No Repair or replace malfunctioning parts according to the 21 Will the engine run smoothly at part throttle? Yes Go to the next step. No Go to Step 23. 22 Perform the TP sweep inspection. Yes Visually inspect the throttle body (damaged/ No Inspect or replace the malfunctioning parts, according 23 Perform the EGR system operation inspection. Yes Go to the next step. No Inspect or replace the malfunctioning parts, according 24 Perform the Purge Control System Operation Yes Go to the next step. No Inspect or replace the malfunctioning parts, according STEP INSPECTION RESULTS ACTION |