LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 220 (Meter) >> Meter / Gauge System >> DTC U0100 Lost Communication with ECM / PCM "A" >> Description

DTC U0100 Lost Communication with ECM / PCM "A": Description

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

The combination meter assembly and the ECM exchange signals through the CAN communication system.

DTC DETECTION CONDITIONS

DTC No. DTC Detection Conditions Trouble Areas
U0100 When either of following conditions detected:
  1. Vehicle speed 5 km/h (3.1 mph) or more and IG voltage 10.5 V or more
  2. No communication with ECM continues for 3 seconds or more (No communication to ECM and skid control ECU continues for 60 seconds or more)
  • CAN communication system
  • ECM