Dtc P0117 - Mazda 6 2002 Workshop Manual

STEP
5 INSPECT POOR CONNECTION OF PCM
CONNECTOR
• Turn ignition key to OFF.
• Disconnect PCM connector.
• Inspect PCM terminals 2E and 2H (harness-
side) for tightness using feeler tool.
• Are there any malfunction?
6 INSPECT IAT SENSOR SIGNAL CIRCUIT FOR
OPEN CIRCUIT
• Inspect continuity between MAF/IAT sensor
terminal D (harness-side) and PCM terminal
2E.
• Is there any continuity?
7 INSPECT IAT SENSOR GROUND CIRCUIT FOR
OPEN CIRCUIT
• Inspect continuity between MAF/IAT sensor
terminal E (harness-side) and PCM terminal
2H.
• Is there continuity?
8 VERIFY TROUBLESHOOTING OF DTC P0113
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
• Is same DTC present?
9 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See F–66 AFTER REPAIR
• Is there any DTC present?
End Of Sie

DTC P0117

DTC P0117 ECT circuit low input
• PCM monitors ECT sensor signal at PCM terminal 1M. If PCM detects ECT sensor voltage below 0.2 V,
PCM determines that the ECT sensor circuit has malfunction.
Diagnostic support note
DETECTION
• This is a continuous monitor (CCM).
CONDITION
• 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.
• ECT sensor malfunction
• Connect or terminal malfunction
POSSIBLE
• Short to ground circuit between ECT sensor terminal A and PCM connector terminal 1M.
CAUSE
• Short each harness ECT signal circuit and ECT ground circuit.
• PCM malfunction
F–94
ON-BOARD DIAGNOSTIC
INSPECTION
SELF-TEST.)
PROCEDURE.)
Yes Repair or replace terminal, then go to Step 9.
No Go to net step.
Yes Go to net step.
No Repair or replace harness for open, then go to Step 9.
Yes Go to net step.
No Repair or replace harness for open, then go to net step.
Yes Replace PCM, then go to net step.
(See F–43 PCM REMOVAL/INSTALLATION.)
No Go to net step.
Yes Go to applicable DTC troubleshooting.
(See F–67 DTC TABLE.)
No Troubleshooting completed.
ACTION
A6E397001084W16