P0138 Diagnostic Trouble Code Discussion for July 2014
Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage
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| Help Request | Posted | |
| 2011 Toyota RAV4 2.5L MIL Lamp on VIN: 2T3BF4DV5B P0138: o2s high voltage bank 1 sensor 2. ... this one. This rav 4 keeps setting a p0138. customer bought vehicle from auction so i have no other repair history other that customer changed b1s2 before he broughtvehicle to me. the upstream AFS reads pretty steady around 3.3v. the down stream ho2 reads ... |
July 15, 2014 | |
| 2007 Jeep Grand Cherokee Laredo 3.7L MIL Lamp on VIN: 1J8GR48K37 P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage. codes are active 2 min's after starting engine. no other problems.when i jumper signal feed to signal return the voltage is 2.49 and that is normal.ground ok and heater control line produces same voltage on all sensors.both the ones with a problem and without.... |
July 23, 2014 | |
| 2004 Dodge Grand Caravan SE 3.3L MIL Lamp on VIN: 1D4GP24R54 P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage. ... would like to get some opinions on. Fault P0138 (O2 sensor 1/2 high voltage). PID for sensor 1/2 is pegged at 4.8V and intermittently drops to 0V and right back up to 4.8V. Here are my test results: Signal wire, O2 1/2 disconnected, KOEO, 2.5V Signal wire... |
July 31, 2014 |
