Cadillac OBD-II Trouble Codes

GMC anchor routes

• P0107 — Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
• P0015 — B Camshaft Position Timing Over-Retarded (Bank 1)
• P0018 — Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)
• P0019 — Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)

How this hub fits the family

Cadillac sits in the gm truck and premium branches cluster as a support route. Use it when owner intent is brand-specific, then pivot back to the family lead for broader code coverage.

More badge-specific pivots

• Buick

Thin direct-entry badges in this family: Cadillac, Buick.

GM truck and premium branches

GMC, Cadillac, and Buick now extend GM routing beyond Chevrolet so reduced-power and timing-correlation searches do not collapse into one badge.

Why this hub matters: High-value support hubs around existing GM code depth.

Shared systems: electronic throttle control, accelerator pedal correlation, VVT correlation, high-pressure fuel delivery

Shared fault themes: reduced-engine-power messages, timing correlation faults, truck and crossover drivability complaints

Cadillac diagnostic routes

• Start with P0008 code coverage
• Check engine misfire symptom routing
• Open guide: How to Diagnose an Engine Misfire Step by Step

Stay inside the family graph

• GMC
• Buick

Cadillac first-click codes

• P0008 — Engine Position System Performance (Bank 1)
• P0009 — Engine Position System Performance (Bank 2)
• P0018 — Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)
• P0019 — Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)
• P1516 — Throttle Actuator Control Module Throttle Actuator Position Performance

Best symptom pivots

• Engine Misfire
• Hard Start
• Reduced Power
• Reduced Engine Power Message

Where to go next if this badge is not the whole story

• Chevrolet · 157 mapped codes — Primary GM volume route for ignition, EVAP, throttle, and transmission complaints
• GMC · 10 mapped codes — Truck-and-SUV GM route for reduced-engine-power and correlation faults
• Buick · 1 mapped codes — Support route for GM reduced-power searches under Buick intent

Cadillac trouble code pages

• P0008 — Engine Position System Performance (Bank 1)
• P0009 — Engine Position System Performance (Bank 2)
• P0018 — Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)
• P0019 — Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)
• P1516 — Throttle Actuator Control Module Throttle Actuator Position Performance

Frequent symptom paths

• Engine Misfire
• Hard Start
• Reduced Power
• Reduced Engine Power Message