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DTC P1397 [MZI-3.7] DTC P1397 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES DIAGNOSTIC PROCEDURE 9 Inspect the CMP sensor. (See Is there any malfunction? Yes Replace the CMP sensor, then go to Step 11. (See No Go to the next step. 10 INSPECT PCM CONNECTOR FOR Disconnect the PCM connector. Inspect for poor connection (such as Are any malfunction? Yes Repair or replace suspected part, then go to the No Go to the next step. 11 VERIFY TROUBLESHOOTING OF Make sure to reconnect all Clear the DTC from the PCM Start the engine. Is the same DTC present? Yes Replace the PCM, then go to the next step. (See No Go to the next step. 12 VERIFY AFTER REPAIR Perform the "AFTER REPAIR Are any DTCs present? Yes Go to the applicable DTC inspection. (See DTC No Troubleshooting completed. DTC P1397 System voltage out of self-test range DETECTION CONDITION This DTC indicates that the 12-volt system voltage is too high or too low POSSIBLE CAUSE Battery or charging system concern.
2008 Mazda CX-9 Grand Touring 2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
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