The PCM monitors the input voltage from the MAF sensor. If the input voltage is less than 0.21 V
for 5 s
, the PCM determines that the MAF sensor circuit has a malfunction.
Diagnostic support note
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
The DTC is stored in the PCM memory.
POSSIBLE CAUSE
MAF/IAT sensor connector or terminals malfunction
Short to ground in wiring harness between the following terminals:
MAF/IAT sensor terminal A-PCM terminal 2BC
MAF/IAT sensor terminal C-PCM terminal 2V
PCM connector or terminals malfunction
MAF sensor signal circuit and ground circuit are shorted to each other
Open circuit in wiring harness between the following terminals: