NHTSA ID Number: 10246377
Manufacturer Communication Number: TSB 23-128
TSB/Document Date: 2023-12-07
Summary
Technical Service Bulletin ( TSB) ALTERNATOR ROUTING & SECUREMENT INSTRUCTIONS
ALTERNATOR CABLE ROUTING & SECUREMENT
Bulletin Type:
Bulletin #(s):
Job Code(s):
Flat Rate(s):
TSB
23-128
9803598
9803598A .10 HR Inspection
only of Alternator Cable
Routing
9803598B .40 HR Alternator
Cable Inspection and Repair
November 2023
Make(s):
Model(s):
Swift LI (20AL, 20DL, 20TL)
Ethos LI (20AL, 20DL, 20TL)
Model Year(s):
2024
Incident:
Incorrect alternator cable routing and securement in front passenger wheel well.
Affected Units:
2024 Jayco
Swift LI and Entegra
Coach Ethos LI with Renogy
48V Lithium system
(4) - SCREW,HEX WSHR .25X1.00 TEK3 ZC
(4) - CLAMP, VINYL COATED STL .88
Parts List:
Misc. Tools & Supplies:
Publication Date:
Screwgun with 1/4” Hex Head Nut Driver Socket
12” Extension
The following symbols are the safety alert symbols. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
!
CAUTION
!
Indicates a potentially hazardous situation that, if not
avoided, may result in minor or moderate injury. It
may also be used to alert against unsafe practices.
!
WARNING
!
Indicates a potentially hazardous situation that, if not
avoided, may result in death or serious injury.
23-128_TSB Alternator Cable Routing
November 2023
Page 1 of 5
ALTERNATOR CABLE INSPECTION PROCESS
Before completing the Alternator Cable routing and securement update, verify the cable is incorrectly
secured to the interior passenger front wheel well.
o If the cable is routed in the wheel well (Figure 1), proceed to the repair instructions.
o If the cable is routed behind the wheel well (Figure 2), no further is action is required and submit
the claim for the inspection time.
Fig. 1
Fig. 2
ALTERNATOR ROUTING & SECUREMENT INSTRUCTIONS
WARNING
!
!
DO NOT touch any terminals or connectors unless all charging sources have been
disconnected.
Please make sure any battery charger or charge controller has been disconnected
before working on the battery.
CAUTION
!
!
DO NOT wear jewelry or other metal objects when working on or around the
battery.
23-128_TSB Alternator Cable Routing
November 2023
Page 2 of 5
1. Power down the lithium battery system.
A. Verify all charging sources have been disconnected:
i. Alternator
ii. Shore Power
iii. Rooftop Solar – disconnect near battery in the ‘OFF’ position
iv. Side Solar
B. Turn off the 12V Master Disconnect (Main Power) located near the rear of the sliding door.
C. Turn off the Inverter by pushing button on Inverter remote switch.
D. Press and release the Self-Locking Battery Switch. The button will be flush in the ‘OFF’ position.
E. Review the Samkoon Battery Screen to ensure that screen is off.
2. With a screwgun with 1/4” Hex Head Nut Driver Socket, remove the fastener(s) and vinyl clamp(s) from the
wheel well interior fender. (Figure 3)
Fig. 3
3. With a new fastener and vinyl clamp, secure the harness above the CV Joint. There should not be contact
between the CV Joint and the alternator cable/harness. (Figure 4)
Fig. 4
23-128_TSB Alternator Cable Routing
November 2023
Page 3 of 5
4 . With a second fastener and vinyl clamp, secure the alternator cable/harness to the interior flat frame.
(Figure 5)
Fig. 5
5. Secure any additional slack along the pinch weld (forward of the passenger side running board bracket)
with 1-2 fasteners and vinyl clamps. (Figure 6)
Fig. 6
23-128_TSB Alternator Cable Routing
November 2023
Page 4 of 5
6 . Power on the Lithium System
A. Verify all charging sources are disconnected:
i. Alternator
ii. Shore Power
iii. Rooftop Solar – disconnect near battery in the ‘OFF’ position
iv. Side Solar
B. Turning on the lithium battery: Turn battery on with the self-locking switch and self-resetting switch
i. Press and release the self-locking switch (typically installed behind an access panel near the
lithium battery)
ii. Next press and hold the self-resetting switch (typically installed overhead cabinet near
Firefly touchscreen) for approximately 5-10 seconds to turn on the battery. There will be a
series of clicks count to 5 after the last one.
C. Turn on Inverter by pushing button on Inverter remote switch. Green light will
turn on the remote switch when inverter is on. Turn off inverter when not
charging by shore power or using 120V outputs (outlets and Timberline Heater)
for short storage to preserve battery SOC%. Leaving the inverter ON when the
system is not in use can result in a 15-20% loss in SOC per day.
D. To turn on 12V power, press and release the momentary switch located near the
rear of the sliding door. Note that the red light by switch is illuminated when
the 12V power is active. To turn off the 12V power, press and release the
switch again and the red light by switch will turn off.
Jayco
’s sole obligation under our limited warranty is to repair or replace defective materials and/or workmanship deemed our responsibility as determined
by Jayco
in our sole discretion. Jayco
reserves the right to use new and/or remanufactured parts or materials of similar quality to complete any work, and to
make parts and/or design changes as appropriate without notice to anyone. Jayco
designs and/or materials changes are done without obligation to
incorporate such changes in previously manufactured product. Jayco
makes every reasonable effort to ensure field remedies will not adversely affect
performance and/or safety of the unit. This field remedy is not intended to extend to future performance of this RV, or any of its materials, components or
parts beyond the standard warranty period. The RV owner’s obligation to notify Jayco
, or one of its independent, authorized dealers, of a claimed defect
does not modify any obligation placed on the RV owner to contact Jayco
directly when attempting to pursue remedies under state or federal law.
.
903 South Main Street • P.O. Box 460 • Middlebury, IN 46540
23-128_TSB Alternator Cable Routing
November 2023
Page 5 of 5
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TSB/Document ID: TSB 23-128
Replacement Service Bulletin Number:
MFR Communication Date: 2023-11-30
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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