Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the P1222 Cadillac code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
With the engine running, then the Powertrain Control Module (PCM) detects the wrong voltage potential on one of the injector drive circuits for under 500 ms. Also the P0200 code will set if a fault in a component or circuit is detected.
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Get the P1222 Cadillac code diagnosed by a professional: Find a repair shop in your area