Lamp:Amber Reason:The ambient air temperature sensor is reading an erratic value. Effect:Possible reduced engine performance. Circuit Description:The ambient air temperature...

Lamp:Amber Reason:The exhaust gas pressure sensor is reading an erratic value. Effect:Possible reduced engine performance. Circuit Description:The exhaust gas pressure...

Lamp:Amber Reason:An error in the barometric pressure sensor signal was detected by the ECM. Effect:Possible reduced engine performance. Circuit Description:The...

Lamp:Amber Reason:The aftertreatment diesel particulate filter outlet temperature is not changing with engine operating conditions. Effect:Possible reduced engine performance. Circuit...

Lamp:Amber Reason:The aftertreatment diesel exhaust fluid tank level has fallen below the critical warning level. Effect:Possible reduced engine performance. Circuit...

Lamp:Amber Reason:The EGR temperature sensor is reading an erratic value at initial key ON or while the engine is running....