Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
To diagnose the P1526 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.
With the engine speed under 250 rpm, system volts over 10v, Engine Coolant Temperature (ECT) sensor input 41°F-212°F, Intake Air Temperature (IAT) sensor input over 41°F, VSS at 0 mph, Accelerator Pedal Position (APP) sensor input less than 15%, Minimum Closed Throttle position not learned, the Powertrain Control Module (PCM) detects the Throttle Position (TP) sensor 1 input was not between 0.24v-0.82v, and that the TP sensor 2 input was not between 4.2v-4.8v with the throttle valves commanded closed.
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