{"nhtsa_id":10106046,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-06-12","date":"2015-12-02","document_id":"SSM71278","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:12V/24V/48V BATTERY; STEERING:ELECTRIC POWER ASSIST SYSTEM; ELECTRICAL SYSTEM:WIRING; EQUIPMENT:ELECTRICAL","mfr_system":null,"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.\"","document":null,"url":"https://open.wenmarpro.com/bulletins/10106046","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"steering","name":"Steering","parent":null},{"id":"battery","name":"12-volt battery","parent":"electrical"},{"id":"power-steering","name":"Power steering","parent":"steering"},{"id":"wiring","name":"Wiring and fuses","parent":"electrical"}],"codes":["B1304","U0001","U0131","U0420","U3001","U3003"],"topics":[],"vehicles":[{"make":"LAND ROVER","model":"DISCOVERY SPORT","year_from":2015,"year_to":2016,"match":"exact","vehicle_ids":["2015_land-rover_discovery-sport","2016_land-rover_discovery-sport"]},{"make":"LAND ROVER","model":"RANGE ROVER","year_from":2013,"year_to":2014,"match":"exact","vehicle_ids":["2013_land-rover_range-rover","2014_land-rover_range-rover"]},{"make":"LAND ROVER","model":"RANGE ROVER EVOQUE","year_from":2012,"year_to":2016,"match":"exact","vehicle_ids":["2012_land-rover_range-rover-evoque","2013_land-rover_range-rover-evoque","2014_land-rover_range-rover-evoque","2015_land-rover_range-rover-evoque","2016_land-rover_range-rover-evoque"]},{"make":"LAND ROVER","model":"RANGE ROVER SPORT","year_from":2014,"year_to":2016,"match":"exact","vehicle_ids":["2014_land-rover_range-rover-sport","2015_land-rover_range-rover-sport","2016_land-rover_range-rover-sport"]}],"as_of":"2026-10-19","note":"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.","attribution":[]}