# Service bulletin SGI14\-21 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: 10101647 - Published by NHTSA: 2017\-06\-01 - Manufacturer's number: SGI14\-21 - Manufacturer's date: 2014\-05\-30 - NHTSA component: SEATS; ELECTRICAL SYSTEM:WIRING ## NHTSA's summary "DESCRIPTION AN ISSUE HAS BEEN IDENTIFIED ON 2014 MODEL YEAR RANGE ROVER \(L405\) LONG WHEELBASE \(LWB\) VEHICLES EQUIPPED WITH REAR BUSINESS SEATS. THERE IS A RISK OF WIRING HARNESS CONTACT WITH THE REAR LEFT AND RIGHT BUSINESS SEAT MECHANISM, LEADING TO A POSSIBLE CHAFING CONDITION AT THE BREAKOUT TO THE REAR SEATS AND CAUSING THE SEAT\(S\) TO NOT FUNCTION PROPERLY." ## 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, Seats, Wiring and fuses ## Vehicles listed - 2014 LAND ROVER RANGE ROVER ## Other bulletins for the same vehicles and component - [SSM73845](/bulletins/10142559.md), 2018-07-02, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING. In the event that a SRS firing circuit is found to be damaged, please refer to SCN JLRP00128 and TOPIx \(workshop manual section 418\-02 \- Description and Operation ? Diagnosis and Testing\) for the updated wiring repair standard and guidelines. - [SSM71278](/bulletins/10106315.md), 2017-06-14, Service bulletin: STEERING:ELECTRIC POWER ASSIST SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:WIRING. ISSUE: A CUSTOMER MAY REPORT THE VEHICLE STEERING FEELS HEAVY FOLLOWING AN ECO STOP START EVENT, POTENTIALLY ACCOMPANIED BY VISUAL OR AUDIBLE WARNINGS THROUGH THE INSTRUMENT PACK. - [SSM71278](/bulletins/10106162.md), 2017-06-13, Service bulletin: ELECTRICAL SYSTEM:WIRING; STEERING:ELECTRIC POWER ASSIST SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. VEHICLE STEERING FEELS HEAVIER THAN EXPECTED ACCOMPANIED BY VISUAL OR AUDIIBLE WARNINGS - [SSM71278](/bulletins/10106104.md), 2017-06-13, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:WIRING. "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" - [SSM71278](/bulletins/10106046.md), 2017-06-12, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; STEERING:ELECTRIC POWER ASSIST SYSTEM; ELECTRICAL SYSTEM:WIRING; EQUIPMENT:ELECTRICAL. "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." - [LTB00626NAS2](/bulletins/10104921.md), 2017-06-07, Service bulletin: ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD. "SITUATION: ONE OR MORE OF THE FOLLOWING ISSUES MAY BE EVIDENT: • THE ALARM IS TRIGGERED FOR NO APPARENT REASON; • THE 'HOOD OPEN' MESSAGE IS DISPLAYED ON THE INSTRUMENT CLUSTER; AND/OR • A MISLOCK SOUND IS EMITTED WHEN LOCKING THE VEHICLE. CAUSE: THESE ISSUES MAY BE CAUSED BY A FAULTY HOOD OPEN SWITCH." - [SSM72100](/bulletins/10103262.md), 2017-06-05, Service bulletin: ELECTRICAL SYSTEM:WIRING; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. "ISSUE: A POTENTIAL CONCERN HAS BEEN IDENTIFIED WITH THE ACCELERATOR PEDAL ON A SMALL NUMBER OF RANGE ROVER AND RANGE ROVER SPORT VEHICLES WHICH MAY RESULT IN THE VEHICLE ENTERING RESTRICTED PERFORMANCE MODE. CAUSE: THE ACCELERATOR PEDAL SWITCH PRINTED CIRCUIT BOARD MAY NOT HAVE BEEN CORRECTLY SOLDERED LEADING TO AN INTERMITTENT CONNECTION." - [LTB00660NAS2](/bulletins/10102185.md), 2017-06-01, Service bulletin: ELECTRICAL SYSTEM:WIRING; PARKING BRAKE. "SITUATION: THE FRONT AND/OR REAR PARKING AID SYSTEM MAY BE INOPERATIVE. CAUSE: THIS MAY BE CAUSED BY A CORRODED WIRING HARNESS AT THE FRONT AND/OR REAR BUMPER HARNESSES." - [Q394 UPS3714\-2BN](/bulletins/10101642.md), 2017-06-01, Service bulletin: SEATS; ELECTRICAL SYSTEM:WIRING. "SITUATION: AN ISSUE HAS BEEN IDENTIFIED ON 2014 MODEL YEAR RANGE ROVER \(L405\) LONG WHEELBASE \(LWB\) VEHICLES EQUIPPED WITH REAR BUSINESS SEATS. THERE IS A RISK OF WIRING HARNESS CONTACT WITH THE REAR LEFT AND RIGHT BUSINESS SEAT MECHANISM, LEADING TO A POSSIBLE CHAFING CONDITION AT THE BREAKOUT TO THE REAR SEATS AND CAUSING THE SEAT\(S\) TO NOT FUNCTION PROPERLY. ACTION: RETAILERS ARE REQUIRED TO HOLD ALL AFFECTED VEHICLES WITHIN THE LISTED VIN RANGE THAT ARE IN THEIR CONTROL AND REFRAIN FROM RELEASING THE VEHICLES FOR NEW OR USED VEHICLE SALE PENDING COMPLETION OF THE REWORK ACTION DETAILED IN THIS TECHNICAL BULLETIN." - [SSM71278](/bulletins/10101263.md), 2017-05-31, Service bulletin: ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; STEERING:ELECTRIC POWER ASSIST SYSTEM. "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 G1D132 AND OR G4D178, \(SEE ATTACHED DIAGRAM\)." JSON: [/v1/bulletins/10101647](/v1/bulletins/10101647) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20SGI14-21&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10101647&vehicle=Service%20bulletin%20SGI14-21)