Dtc P0112 [Lf] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
• Perform the "After Repair Procedure".
(See AFTER REPAIR PROCEDURE
• Are any DTC present?
DTC P0112
DETECTION
CONDITION
POSSIBLE CAUSE
Downloaded from
[LF].)

DTC P0112 [LF]

IAT sensor circuit low input
• The PCM monitors the IAT sensor signal at PCM terminal 1AH. If the PCM
detects the IAT sensor voltage below 0.16 V, the PCM determines that the
IAT 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.
• DTC is stored in the PCM memory.
• IAT sensor malfunction
• Short to ground in wiring harness between MAF/IAT sensor terminal D and
PCM terminal 1AH
• Short each wiring harness IAT signal circuit and IAT ground circuit
• PCM malfunction
https://carmanualshub.com/
(See DTC TABLE [LF].)
No Troubleshooting completed.
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B3E010201084W11