S1908000166

STAR ONLINE PUBLICATION
Case Number: S1908000166
Release Date:
05/09/2020
Symptom/Vehicle Issue: Stop Start Inoperative, Auxiliary Battery Low Requires
Charging, No Start
Customer complaint/ technician observation: The customer complains the vehicles stop
start system is not functioning. Technician observed the aux battery is low and the stop start
unavailable message is displayed.
Repair Procedure: The electrical system of the new body style JL has a Power Control Relay
(PCR). This relay controls battery usage for start stop events. When the engine is cold, both batteries
crank the engine. When the engine is at operating temperatures only the starting large battery is used
for Electric Start Stop (ESS) starting, the auxiliary battery is then used for other vehicle loads. Clean
and tighten all main connections for PCR to battery and fuse array, no parts required, Fig 1, 2 ,3.
Fi g 1, PCR relay location below PDC
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
FCA US LLC
Version 4.2 02/06/2017
STAR ONLINE PUBLICATION
Fig 2
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
FCA US LLC
Version 4.2 02/06/2017
STAR ONLINE PUBLICATION
PCR to AUX battery
Fig 3
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online does
not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear to be
similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the appropriate
course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
FCA US LLC
Version 4.2 02/06/2017