Conditions for Running the DTC
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
P1474, P1475, P1476, P1477, P1478
- DTC P16D7, P16D8, P16D9, P24D0, U02A3 = Not set
- Ignition On
- Ignition Voltage = Greater than 11 V
- Reductant Control Module Relay = ON
Frequency the DTC runs = Continuously - After the running conditions are met
P1479, P147B
- DTC P142C, P142D, P142E, P142F, P1474, P1475, P1476, P1477, P1478, P16D7, P16D8, P16D9, P24B0, P24B1, P24B3, P24B5, P24B6, P24D0, U02A3 = Not set
- Ignition On
- Ignition Voltage = Greater than 11 V
- Particulate Matter Sensor = 200 to 425°C (392 to 797°F)
- Reductant Control Module Relay = ON
Frequency the DTC runs = Continuously - After the running conditions are met
P1488
- DTC U02A3 = Not set
- Verify there are no DTCs set related to the following system/component:
- B66 Intake Air Temperature Sensor
- B75C Multifunction Intake Air Sensor
- Q14 Exhaust Gas Recirculation Valve
- Q17 Fuel Injector
- Ignition On
- Ignition/Vehicle - Off - For greater than 8 h
- Ignition Voltage = Greater than 11 V
- Particulate Matter Sensor = 0 to 300°C (32 to 572°F)
- Reductant Control Module Relay = ON
Frequency the DTC runs = Continuously - After the running conditions are met