P0507 on Cadillac: Symptoms, Causes & DIY Fix
Official technical diagnostic wire for fault code P0507 (Idle Control System RPM Higher Than Expected - Diagnosis) specifically affecting Cadillac vehicles (Escalade, Escalade-V, CT5, CT5-V Blackwing, CT4).
1. Symptoms of P0507 on Cadillac
When the Engine Control Module (ECM/PCM) on your Cadillac logs fault code P0507, drivers commonly observe:
2. Most Likely Causes on Cadillac
Historical warranty claims and technical repair bulletins for Cadillac point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Cadillac
Spray brake cleaner around intake manifold gaskets; an RPM change reveals the leak location. on Cadillac vehicles (Escalade, Escalade-V).
Gently clean carbon soot around throttle blade using throttle cleaner and microfiber towel. on Cadillac vehicles (Escalade, Escalade-V).
Follow vehicle-specific ignition key on/off timing sequence or use OBD scanner to reset baseline idle. on Cadillac vehicles (Escalade, Escalade-V).
P0507 Guides by Cadillac Model
Select your specific Cadillac model below for exact OBD-II DLC port locations, wiring diagrams, and engine displacement specs:
Other Common Diagnostic Codes on Cadillac
Troubleshoot other high-frequency Check Engine Light fault codes reported across Cadillac vehicles:
4. Cadillac P0507 FAQs
What causes code P0507 to trigger on a Cadillac?
On Cadillac vehicles, P0507 is most frequently caused by Intake manifold vacuum leak or Carbon buildup causing sticky electronic throttle body. Factory sensor degradation or wiring harness wear near the engine bay are common factors.
Can I safely drive my Cadillac with code P0507?
Driveable, but braking distance may increase slightly due to high engine idle. Given that P0507 carries a Medium severity rating on Cadillac vehicles, we advise performing diagnostic scanning via the OBD-II port before extended driving.
How much does it cost to fix P0507 on a Cadillac?
DIY replacement parts typically range between $40 - $250 (DIY Throttle Relearn: $0). If serviced at an authorized Cadillac dealership, expect an additional $120–$250 in professional labor based on their $165/hr hourly rate.