U1102 CHRYSLER – SCP Invalid or Missing Data for Primary Id

U1102 CHRYSLER Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Engine won??? crank / cranks but fails to start,Instrument panel gauges inoperative,Power windows / door locks intermittently operate,May or may not be able to communicate with a scan tool / depends on problem

U1102 CHRYSLER Possible Causes

Faulty / intermittent ignition switch connections,J1850 / SCP / CAN Bus wiring intermittently open, shorted to power or ground,Faulty / intermittent connection at the Powertrain Control Module (PCM),Faulty / intermittent connection at the Body Control Module (BCM),Faulty / intermittent connection at the Instrument Panel Cluster (IPC)

U1102 CHRYSLER Description

This is a manufacturer specific fault code and can be used for several different faults, depending upon what the manufacturer wants to use it for. Controllers communicate over the Serial Communication Protocol (SCP) bus network, also known as J1850 bus, or Controller Area Network or CAN Bus. These bus communication systems may or may not be fault tolerant, which means any type of intermittent/loose connection between these controllers could cause communication to stop. When these controllers are unable to communicate with each other at any time while the ignition switch is turned on, code U1102 will set.