Cadillac P1530: Throttle Actuator Control Module Internal Circuit

What Does The Cadillac P1530 Code Mean?

Engine started, engine speed under 250 rpm, vehicle not moving, ECT sensor from 41ºF-212ºF, IAT sensor more than 41ºF, Pedal Position angle less than 15%, and the PCM determined he TAC system was outside of its calibrated operating range.

What Are The Potential Causes Of The Cadillac P1530 Code?

Below are some potential causes of this DTC:

• Inspect for throttle valves that are “not” in the rest position
• Verify the throttle valves are free to move open or closed
• Throttle motor circuit(s) is open, shorted to ground or to B+
• Throttle body assembly is damaged or has failed
• PCM is damaged

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> HOWYAA HVE72A Electronic Fuel Injection Throttle Body Assembly for 07-11 Cadillac
>>> GM Genuine Parts 12633238 Engine Control Module

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

GM, 2013, Service Bullettin – Prior To Any Circuit Testing.