# Service bulletin SSM71278

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10106104
- Published by NHTSA: 2017\-06\-13
- Manufacturer's number: SSM71278
- Manufacturer's date: 2016\-01\-18
- NHTSA component: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:WIRING

## NHTSA's summary

"ISSUE: A CUSTOMER MAY REPORT THE VEHICLE STEERING FEELS HEAVY POTENTIALLY ACCOMPANIED BY VISUAL OR AUDIBLE WARNINGS THROUGH THE INSTRUMENT PACK. THE FOLLOWING DTCS MAY ALSO BE LOGGED: EPAS DTCS LOGGED: \-B1304\-16: ELECTRONIC POWER ASSISTED STEERING \(EPAS\) SYSTEM CIRCUIT VOLTAGE BELOW THRESHOLD \-U3001\-00: POWER STEERING CONTROL MODULE \(PSCM\) SYSTEM IMPROPER SHUTDOWN. THESE MAY BE ACCOMPANIED BY: \-U0001\-87 / 88 HIGH SPEED CAN BUS INVALID SERIAL DATA RECEIVED / MISSING MESSAGE. CHCM DTCS LOGGED: \-U0131\-00 CHASSIS CONTROL MODULE \(CHCM\) LOST COMMS WITH PSCM. \-U3003\-62 BATTERY VOLTAGE SIGNAL COMPARE FAILURE. \-U0420\-68 CHCM INVALID DATA RECEIVED FROM PSCM. CAUSE: THIS MAY BE CAUSED BY: \-LOW BATTERY VOLTAGE. \-WIRING HARNESS ISSUE \(SHORT / OPEN CIRCUIT, HIGH RESISTANCE\). \-HIGH RESISTANCE AT EPAS EARTH TERMINAL \(FOR L405/L494\) G1D132 AND OR G4D178, \(SEE ATTACHED DIAGRAM\). OR IF ON L550/L538 HIGH RESISTANCE AT G1D122A, G1D122B, G1D122AZ AND G1D108. \-POOR CONNECTION OR PIN SET CONDITION AT CONNECTOR NUMBER: C11\-G1"

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Electrical system, 12\-volt battery, Wiring and fuses

## Trouble codes named

B1304, U0001, U0131, U0420, U3001, U3003

## Vehicles listed

- 2015 LAND ROVER DISCOVERY SPORT
- 2013 to 2016 LAND ROVER RANGE ROVER
- 2012 to 2016 LAND ROVER RANGE ROVER EVOQUE
- 2014 to 2016 LAND ROVER RANGE ROVER SPORT

## Other bulletins for the same vehicles and component

- [LTB00540NAS3](/bulletins/10214082.md), 2022-06-13, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical Bulletin: Smart Key Not Found Message Displayed
- [LTB00540NAS2](/bulletins/10214081.md), 2022-06-13, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. Technical Bulletin: Smart Key Not Found Message Displayed
- [LTB00540NAS1a](/bulletins/10214080.md), 2022-06-13, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical Bulletin: Smart Key Not Found Message Displayed
- [LTB00511NAS1](/bulletins/10214058.md), 2022-06-13, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical Bulletin: Loss of Battery Charge
- [SSM64977](/bulletins/10206495.md), 2022-01-18, Service bulletin: WHEELS; EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Vehicle Battery Questionaire \- Land Rover have recently received reports that the main vehicle battery located in the spare wheel aperture has required replacement following a Midtronics tester check.
- [Q344NAS1](/bulletins/10204909.md), 2021-12-13, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:MECHANICAL. Technical Bulletin: Battery Cable Ground Connection
- [Q332NAS2](/bulletins/10204900.md), 2021-12-13, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical Bulletin: Battery Retention
- [Q332NAS1](/bulletins/10204899.md), 2021-12-13, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:MECHANICAL. Technical Bulletin: Battery Retention
- [Q278NAS1](/bulletins/10204887.md), 2021-12-13, Service bulletin: EQUIPMENT:MECHANICAL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technical Bulletin: Battery Box Water Ingress
- [Q274NAS1](/bulletins/10204880.md), 2021-12-13, Service bulletin: ELECTRICAL SYSTEM:WIRING:SWITCHES/KNOBS/BUTTONS; STRUCTURE:BODY:TAILGATE. Technical Bulletin: Service Action: Power Tailgate

JSON: [/v1/bulletins/10106104](/v1/bulletins/10106104)

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