CAR OBD CODES
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OBD CODES

CAR OBD CODES



OBD/DTC Search, e.g.P0138

CAR OBD CODES P0138

P0138 OBD Code Definition:
P0138 HO2S12 Circuit High Voltage
P0138 OBD Code Description:

OBD Code P0138

O2 Sensor Circuit High Voltage

What’s mean?

OBD2 Code P0138 Definition:
The Heated Oxygen Sensor (2) located rear of catalytic converter produces an output signal relative to oxygen storage capacity of catalytic converter. Ho2S 2 signal is less active than signal produced by front oxygen sensor. This code sets when HO2 Sensor voltage is greater than 999 mV for more than 2 minutes (time depends on model. Could be as high as 4 minutes) Symptoms

Possible sumptoms of P0138
There may be no noticeable symptoms except for MIL illumination. Possible high fuel pressure can over rich the system. Possible Causes

Possible causes of P0138
A code P0138 may mean that one or more of the following has happened: Faulty O2 sensor Short to battery voltage in O2 sensor signal circuit High fuel pressure (not as likely) Possible Solutions

Here are some potential solutions: Replace O2 sensor Repair short to battery voltage in o2 sensor signal circuit
Note: The information on the P0138 error code is purely informative, if you need more useful information, please consult your technician.

Car brand: :

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