Error code U0155 indicates that there’s a loss of communication with your Instrument Panel Cluster Control Module (IPC). This occurs when the Powertrain Control Module (PCM) notices that it can no longer communicate with the IPC properly.
What is an IPC control module?
Diagnostic trouble code (DTC) U0155 stands for “Lost Communication with Instrument Panel Control (IPC) Module.” This code is logged when one or more modules (computers) on the vehicle have lost communication with the Instrument Panel Control (IPC) module.
What module controls the instrument cluster?
On modern cars, there’s one wiring harness running from the instrument cluster to the engine control module (ECM) or body control module (BCM). The ECM or BCM has a bunch of wires running to sensors and lights all over the vehicle.
How do I fix U0155?
Check the battery
The instrument cluster can’t communicate properly without sufficient battery voltage. Test and recharge or replace the battery as needed. Then, clear the code.
What does lost communication with body control module mean?
U0140 is a generic diagnostic trouble code (DTC) that stands for “Lost Communication With Body Control Module.” This code generally means that the BCM isn’t properly transmitting or receiving signals. A U0140 code can have a wide variety of indications.
Is there a fuse for the instrument cluster?
The fuse may be labeled gauges, clusters, or something similar. This fuse should have power on both sides with the ignition in the on position. If the fuses are okay, check for power at the instrument cluster. If the instrument cluster has power, then check for ground.
What causes instrument cluster failure?
It comes from the computer not correctly functioning, which may be due to corrupted software or a hardware problem. For 2000 Jeep Grand Cherokee instrument cluster problems, this is not the most common cause, and replacing the PCM only renders a 50% success rate in fixing the dashboard problem.
Does the BCM control the instrument cluster?
A malfunctioning BCM will activate dashboard instrumentation cluster error and warning lights. These lights may flash off and on if the BCM is not able to read the sensors correctly. Your vehicle performance may also be affected as the BCM communicates with other control modules in the vehicle.
What is U0121 code?
What does OBD-II fault code U0121 mean? Code U0121 stands for Lost Communication with Anti-lock Brake System Module. Anti-lock brakes are required on all modern vehicles. The antilock braking system (ABS) prevents wheel lockup by modulating the brakes in an emergency situation.