Service bulletin LI54.10-P-080004

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.

NHTSA's summary

Complaint • Vehicle cannot be started • Warning in the instrument cluster related to High-voltage on board electrical system • The following fault codes related to interlock can be found in the High Voltage Control units : • PTCU (N127) : P154700 - There is a warning due to a detected fault in the interlock circuit. • BMS (N82/9) : P0A0B00 - The interlock circuit of the high-voltage on-board electrical system has a malfunction. P0A0D00 - The interlock circuit of the high-voltage on-board electrical system has a short circuit to positive. • DCB (N116/5): P0A0A00 - The interlock circuit of the high-voltage on-board electrical system has an electrical fault. P0A0B00 - The interlock circuit of the high-voltage on-board electrical system has a malfunction. P0A0C00 - The interlock circuit of the high-voltage on-board electrical system has a short circuit to ground. • OBL (N83/11) : P0A0B00 - The interlock circuit of the high-voltage on-board electrical system has a malfunction. P0A0C00 - The interlock circuit of the high-voltage on-board electrical system has a short circuit to ground. Cause • Oxidation in interlock circuit pins of the low voltage connectors in the components • Twisted harness • Harness scratching with the body • Wiring harness chafed/cut at the ECUs • Broken interlock connector • Improperly connected HV connectors • Interlock pins on HV components are bent or deformed Important Note : • In case of interlock failures, the High-voltage component is less likely to cause the issue. Remedy Remedy 1: Interlock loop resistance measurement (Refer attachment "243 Interlock Resistance Measurements.pdf") Remedy 2: Additional check points for interlock issues

The document

• NHTSA's copy of the document (PDF)
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The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Trouble codes named

P0A0A, P0A0B, P0A0C, P0A0D, P1547

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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