Diagnosis & Repair Procedure
- Ensure FREEZE FRAME PID data has been recorded. Check service bulletins. Go to next step.
- Turn ignition on. Using scan tool, access PID/DATA MONITOR. Record PID data for FTL V. If FTL V PID is .07 volt or less, go to next step. If FTP V PID is more than .07 volt, problem is intermittent (not current).
- Turn ignition off. Disconnect sending unit harness connector. Check terminals for poor contact or corrosion. If no problem is found, go to next step. If problem is found, repair as necessary. go to step 7
.
- Ensure sending unit harness connector is disconnected. Turn ignition on. Using scan tool, access PID/DATA MONITOR. Record PID data for FTL V. If FTL V PID is 4.9 volts or less, go to next step. If FTP V PID is more than 4.9 volt, repair or replace sending unit. After repair, go to step 7
.
- Check continuity of Gray wire between sending unit harness connector terminal "A" and ground. See Fig 1
. If continuity is not present, go to next step. If continuity is present, repair short to ground and go to step 7
.
- Check continuity between sending unit harness connector terminals "A" (Gray wire) and "C" (Black/Orange wire). If continuity is not present, go to next step. If continuity is present, repair between circuits and go to next step.
- Reconnect all connectors. Turn ignition on. Clear DTC from memory. Perform drive mode 1, 2 and 3. See
SELF-DIAGNOSTICS - INTRODUCTION - MIATA, MILLENIA, MPV & PROTEGE article. Recheck for DTCs. If same DTC is present, replace PCM. If same DTC is not present, go to next step.
- Clear DTC from memory. Recheck for DTCs. If any DTC is present, diagnose and repair DTC. If no DTCs are present, test is complete.
Courtesy of MAZDA MOTORS CORP.