Dtc P0117 [Lf] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
• Inspect for continuity between MAF/IAT
sensor terminal D (wiring harness-side) and
PCM terminal 1AH.
• Is there continuity?
INSPECT IAT SENSOR GROUND CIRCUIT
FOR OPEN CIRCUIT
• Inspect for continuity between MAF/IAT
8
sensor terminal E (harness-side) and PCM
terminal 1AA.
• Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0113 COMPLETED
• Make sure to reconnect all disconnected
connectors.
9
• Clear the DTC from the PCM memory using
the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
10
(See AFTER REPAIR PROCEDURE
• Are any DTC present?
DTC P0117
DETECTION
CONDITION
Downloaded from
[LF].)

DTC P0117 [LF]

ECT sensor circuit low input
• The PCM monitors the ECT sensor signal at PCM terminal 2AK. If the PCM
detects the ECT sensor voltage below 0.2 V, the PCM determines that the
ECT sensor circuit has malfunction.
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition
during first drive cycle.
• PENDING CODE is available if the PCM detects the above malfunction
condition.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
https://carmanualshub.com/
Yes Go to the next step.
Repair or replace the wiring harness for
No
open circuit, then go to the next step.
Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION
[LF].)
No Go to the next step.
Go to the applicable DTC troubleshooting.
Yes
(See DTC TABLE [LF].)
No Troubleshooting completed.
- automotive repair manuals website
B3E010201084W13