What does the code p135b mean or indicate on a Chevy Traverse 2012?
P0135 CHEVROLET - HO2S Heater Performance Bank 1 Sensor 1 Possible causes... - Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection - Faulty Powertrain Control Module (PCM) Tech notes... The code means that there is a problem with the heater element circuit of the heated oxygen sensor. The control module monitors how long it take the sensor to warm up and start sending an adequate signal. The code is triggered when the sensor is taking too long to warm up. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. If the sensor and connector are OK, replacing the O2 Sensor 1 usually takes care of the problem.
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