Mazda 2002 6 - Dtc P0118

F–96
ON-BOARD DIAGNOSTIC
End Of Sie
DTC P0118
A6E397001084W17
6 VERIFY TROUBLESHOOTING OF DTC P0117
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from PCM memory using WDS or
equivalent.
• Perform KOEO/KOER self-test.
(See F–66 KOEO/KOER SELF-TEST.)
• Is same DTC present?
Yes Replace PCM, then go to next step.
(See F–43 PCM REMOVAL/INSTALLATION.)
No Go to next step.
7 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See F–66 AFTER REPAIR PROCEDURE.)
• Is there any DTC present?
Yes Go to applicable DTC troubleshooting.
(See F–67 DTC TABLE.)
No Troubleshooting completed.
STEP INSPECTION ACTION
DTC P0118 ECT circuit high input
DETECTION
CONDITION
• PCM monitors ECT sensor signal at PCM terminal 1M. If PCM detects ECT sensor voltage above 4.6 V,
PCM determines that ECT sensor circuit has malfunction.
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if PCM detects the above malfunction condition during first drive cycle.
• PENDING CODE is available if PCM detects the above malfunction condition.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.
POSSIBLE
CAUSE
• ECT sensor malfunction
• Open circuit between ECT sensor terminal A and PCM terminal 1M
• Short to power circuit between ECT sensor terminal A and PCM terminal 1M
• Open circuit between ECT sensor terminal B and PCM terminal 2H
• Poor connection of ECT sensor or PCM connectors
• PCM malfunction