U0155 Fault Code

U0155 Ambient Air Temperature Sensor (AAT): Missing Signal

Component / System

AAT - Missing

Monitor Strategy Description

Missing Signal From Sensor

Fault Limit

Time Out > 9 seconds

Enable Conditions

Key On Active
Battery Voltage > 8 V

Disable Conditions

No Active DTC's:
N/A

Time Required For U0155 DTC To Be Set

Continuous

MIL Illumination

2 Drive Cycles

---

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.