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Where is the heater control sensor bank1 sensor 2 on 2007 tahoe

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Heated o2 sensor B1 sensor 2 is on the exhaust drivers side. Don't be surprised if you need to replace the complete Y-pipe with the catalytic converters ikeem.

Posted on Dec 31, 2013

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2007 Chevy Tahoe check engine scan codes: P0030, P0053, PO135 ~ Please advise or help : ( thought that advanced auto would have been a bit more helpful than handing me a piece of paper with codes and...


There is a fault with the inbuilt heater in the oxygen sensor, before the catalytic converter, on the exhaust pipe the same side of the engine as cylinder 1. The oxygen sensor has four wires within the cable sheath to the top of it. Two of the wires will share the same color. These wires supply power to an internal heating element wire within the sensor. Follow the cable from the oxygen sensor to the connector, you can do a lot testing here. Check the resistance between the two 'same coloured ' wires. The resistance is low, somewhere between 1 and 10 ohms. If there is no continuity (infinite resistance) then this is the fault and the sensor needs to be replaced. The codes: P0030 the oxygen sensor heater relay is at fault P0053 Oxygen heater resistance error P0135 Sensor 1 bank 1 error You are looking at replacement. A further confirmation take the connection from sensor 1 bank 1 and swap it with the sensor 1 bank 2 on the other side of the engine. The codes should 'transfer' and show P0036; P0059 and P0141.

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Heated seats automaticaly shut off shortley after being turned on. Ocasionaly the drivers side will work.


See GM TSB 05-08-143-001, If you have Adjustable pedals, especially if they don't work with the memeory buttons, but function with thier own buttons. Its the Brake Pedal Position Sensor is shorted and mesing up the seat module which controls the heaters too. My 05 Suburban had the same issue.

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Po138 code on 96 chevy tahoe 5.7l where do i start testing


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My seat heaters come on and then shutoff after 4minutes. What is problem? 2003 chevey tahoe


the seat heating elements may be partially shorted or drawing excess current, they are controlled by a timed relay in the seat heater control switch, the switch may also cause this, but most common issue is the heater element in the seat cushion in my experience..

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2001 tahoe front heater not working, rear heater blows warm air


Notorious for plugged heater cores. Also updated plastic restriction couplers mounted at heater core available from dealer. Try back flushing heater core. Run engine till its at operating temperature then carefully hold the inlet and outlet hose breifly with heater fan on high if hoses are nearly the same temp then flow is good , if not then core is plugged.

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