P040B Fault Code

P040B EGR Temperature Sensor: Rationality Monitor

Component / System

EGR Temperature Sensor - Rationality

Monitor Strategy Description

EGR Temperature Sensor evaluation

Fault Limit

Delta = EGR temperature - Coolant temperature < - 40 °C or > 80 °C

Enable Conditions

Stuck Low
Engine Speed 1000 - 1600 RPM
Engine Torque < 1200 Nm
EGR Mass Flow < 0.08 kg/sStuck High
Engine Speed 1200 - 2000 RPM
EGR Mass Flow > 0.1 kg/s

Disable Conditions

No Active DTC's:
P040A, P040C

Time Required For P040B DTC To Be Set

30 seconds

MIL Illumination

2 Drive Cycles

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Don't forget ! When a fault code pops up, Volvo's Uptime Center is automatically notified via an cellular link, and it alerts the truck's owner by prearranged methods, usually email or phone calls.