Question about 2003 GMC Sierra 1500
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Posted on Jan 02, 2017
SOURCE: DTC Codes
P0113-Intake Air Temperature (IAT) Sensor Circuit High Voltage
P1111-Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage
I am unable to dig up any C code with that number.
Posted on Sep 04, 2008
SOURCE: PO131 and PO 151
P0131=O2 Sensor Circuit Low Voltage Bank 1 Sensor 1
P0151=O2 Sensor Circuit Low Voltage Bank 2 Sensor 1
this shows that the oxygen sensor on the left exhaust pipe before converter is bad,
And the front oxygen sensor on the right exhaust infront of converter is bad.
Posted on Dec 10, 2009
Testimonial: "thank you for the quick reaction! Marc"
SOURCE: po137/po157 codes no activity
P0137 / P0157-Oxygen O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2) refers to the second oxygen sensor on Bank 1. P0137 means the O2 oxygen sensor's voltage remained low for longer than 2 minutes. This, is interpreted by the ECM as a low voltage condition and sets the MIL. Bank 1 Sensor 2 is located to the rear of the catalytic converter and should produce an output signal relative to oxygen storage capacity of the catalytic converter. This rear (sensor 2) sensor is less active than the signal produced by the front sensor. However, if the ECM senses the sensor is inactive, this code will set.
A code P0137 may mean that one or more of the following has happened:
Faulty o2 sensor Exhaust leak near the rear sensor
Short to voltage on O2 signal circuit
High resistance or open on O2 signal circuit
Replace faulty sensor
Repair exhaust leak near the rear sensor
Check for restriction in catalyst and replace as necessary
Repair short, open, or high resistance on o2 signal circuit
Posted on Mar 08, 2010
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