Dtc P0111 [Lf] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
• Make sure to reconnect all
disconnected connectors.
• Turn the ignition switch to the ON
position (Engine off).
• Clear the DTC from the memory
using the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
VERIFY AFTER REPAIR
PROCEDURE
• Perform "After Repair Procedure".
10
(See AFTER REPAIR PROCEDURE
[LF].)
• Are any DTC present?
DTC P0111
• If the intake air temperature is higher than the engine coolant temperature by 40 °C
{104 °F} with key on, the PCM determines that there is a IAT sensor performance
problem.
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition in two
DETECTION
consecutive drive cycles or in one drive cycle while the DTC for the same
CONDITION
malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition
during first drive cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in PCM memory.
• IAT sensor malfunction
POSSIBLE • Poor connection at MAF/IAT sensor or PCM connector
CAUSE
• PCM malfunction
Diagnostic procedure
STEP
Downloaded from
No Go to the next step.
Yes
No Troubleshooting completed.

DTC P0111 [LF]

IAT circuit range/performance problem
INSPECTION
https://carmanualshub.com/
Go to the applicable DTC troubleshooting.
(See DTC TABLE [LF].)
- automotive repair manuals website
B3E010201084W10
ACTION