Chevrolet Trailblazer Service Manual page 290

P2547 Torque Management Request Input Signal "A" High
P2548 Torque Management Request Input Signal "B"
P2549 Torque Management Request Input Signal "B" Range/Performance
P2550 Torque Management Request Input Signal "B" Low
P2551 Torque Management Request Input Signal "B" High
P2552 Throttle/Fuel Inhibit Circuit
P2553 Throttle/Fuel Inhibit Circuit Range/Performance
P2554 Throttle/Fuel Inhibit Circuit Low
P2555 Throttle/Fuel Inhibit Circuit High
P2556 Engine Coolant Level Sensor/Switch Circuit
P2557 Engine Coolant Level Sensor/Switch Circuit Range/Performance
P2558 Engine Coolant Level Sensor/Switch Circuit Low
P2559 Engine Coolant Level Sensor/Switch Circuit High
P2560 Engine Coolant Level Low
P2561 A/C Control Module Requested MIL Illumination
P2562 Turbocharger Boost Control Position Sensor Circuit
P2563 Turbocharger Boost Control Position Sensor Circuit Range/Performance
P2564 Turbocharger Boost Control Position Sensor Circuit Low
P2565 Turbocharger Boost Control Position Sensor Circuit High
P2566 Turbocharger Boost Control Position Sensor Circuit Intermittent
P2567 Direct Ozone Reduction Catalyst Temperature Sensor Circuit
P2568 Direct Ozone Reduction Catalyst Temperature Sensor Circuit Range/Performance
P2569 Direct Ozone Reduction Catalyst Temperature Sensor Circuit Low
P2570 Direct Ozone Reduction Catalyst Temperature Sensor Circuit High
P2571 Direct Ozone Reduction Catalyst Temperature Sensor Circuit Intermittent/Erratic
P2572 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit
P2573 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance
P2574 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Low
P2575 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit High
P2576 Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Intermittent/Erratic
P2577 Direct Ozone Reduction Catalyst Efficiency Below Threshold
P2600 Coolant Pump Control Circuit/Open
P2601 Coolant Pump Control Circuit Range/Performance
P2602 Coolant Pump Control Circuit Low
P2603 Coolant Pump Control Circuit High
P2604 Intake Air Heater "A" Circuit Range/Performance
P2605 Intake Air Heater "A" Circuit/Open
P2606 Intake Air Heater "B" Circuit Range/Performance
P2607 Intake Air Heater "B" Circuit Low
P2608 Intake Air Heater "B" Circuit High
P2609 Intake Air Heater System Performance
P2610 ECM/PCM Internal Engine Off Timer Performance
P2611 A/C Refrigerant Distribution Valve Control Circuit/Open
P2612 A/C Refrigerant Distribution Valve Control Circuit Low
P2613 A/C Refrigerant Distribution Valve Control Circuit High
P2614 Camshaft Position Signal Output Circuit/Open
P2615 Camshaft Position Signal Output Circuit Low
P2616 Camshaft Position Signal Output Circuit High
P2617 Crankshaft Position Signal Output Circuit/Open
P2618 Crankshaft Position Signal Output Circuit Low
P2619 Crankshaft Position Signal Output Circuit High