July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
DTC P0137:00: Notes
DTC P0137:00
HO2S circuit low input
DETECTION CONDITION
The PCM monitors input voltage from HO2S. If the input voltage from the HO2S is below -0.95 V
or HO2S bias voltage below 1.3 V
for 5 s
while the HO2S is active, the PCM determines that the HO2S circuit input is low.
Diagnostic support note
This is a continuous monitor (A/F sensor, HO2S).
The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same 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 (Mode 2)/Snapshot data is available.
The DTC is stored in the PCM memory.
POSSIBLE CAUSE
HO2S connector or terminals malfunction
Short to ground in wiring harness between HO2S terminal A and PCM terminal 2AH
PCM connector or terminals malfunction
HO2S circuits are shorted to each other
Open circuit in wiring harness between the following terminals: