What are the possible causes of a p2238 Toyota?
P2238 TOYOTA Possible Causes 1 Faulty EFI Relay 2 Faulty Air/Fuel Sensor Bank 1 3 Air/Fuel Sensor Bank 1 harness is open or shorted 4 Air/Fuel Sensor Bank 1 circuit poor electrical connection 5 Faulty Engine Control Module (ECM)
What does a positive current code p2237 mean?
A stored code P2237 means that the powertrain control module (PCM) has detected a positive current discrepancy in the upstream oxygen (O2) sensor for engine bank number one. Bank one is the engine bank that contains the number one cylinder. Sensor 1 denotes the upstream (pre-cat) sensor.
How much does it cost to repair a p2237 Toyota?
The cost of diagnosing the P2237 TOYOTA code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
What to do if your car has code p2237?
If the code P2237 continues to be reset, start the engine. Allow it to reach normal operating temperature and idle (with the transmission in neutral or park). Connect the scanner to the vehicle diagnostic port and observe oxygen sensor input data on the data stream.
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What does the p2238 OBD-II trouble code mean?
What the P2238 code means? P2238 is an OBD-II generic code for the engine control module (ECM) detecting the O2 sensor for bank 1 sensor 1 has a short circuit for the heater control circuit of the O2 sensor. What causes the P2238 code?
What to do if your p2238 O2 sensor is reset?
Unplug the HO2S in question and use the DVOM to check resistance between the positive current control circuit and any ground circuits. If there is continuity, suspect a defective HO2S. If the code P2238 continues to be reset, start the engine. Allow it to reach normal operating temperature and idle (with the transmission in neutral or park).
What does stored code p2238 in PCM mean?
A stored code P2238 means that the powertrain control module (PCM) has detected a positive current discrepancy in the upstream oxygen (O2) sensor for engine bank number one. Bank one is the engine bank that contains the number one cylinder.