Diagnosis procedure
1.Check connector
Is the inspection result normal? Yes >> go to 2.
No >> repair the terminal and connector.
2.Check harness for open circuit
Check the resistance between the data link connector terminals.

Is the measurement value within the specification? Yes (present error)>>check can system type decision again.
Yes (past error)>>error was detected in the data link connector branch line circuit.
No >> repair the data link connector branch line.
A-bag branch line circuit
Eps branch line circuitDescription
NOTE:
This vehicle is diagnosed using the CONSULT-III plus.
When CONSULT is connected with a data link connector
equipped on the vehicle side, it will communicate with the control
unit equipped in the vehicle and then enable various kinds of diagnostic
tests.
Instrument lower panel LH ...
P0037, P0038 HO2S2 Heater
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0037
HO2 HTR (B1)
(HO2S heater control circuit
low bank 1 sensor 2)
The current amperage in the heated oxygen sensor
2 heater ci ...
Precaution
Precautions for Trouble Diagnosis
Caution:
Follow the instructions listed below. Failure to do this may cause
damage to parts:
Never apply 7.0 V or more to the measurement terminal.
Use a tester with open terminal voltage of 7.0 V or less.
Turn the ignition switch off and disconnect the ...