Service bulletin B340316
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 | 10151361 |
| Published by NHTSA | 2018-12-10 |
| Manufacturer's number | B340316 |
| Manufacturer's date | 2016-06-01 |
| NHTSA component | SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING |
NHTSA's summary
Erroneous Wheel Speed Sensors Plausibility Faults - Diagnosis. INFORMATION These faults do NOT indicate brake system malfunction, or cause Check Control message display. Do not replace any parts! Perform a 12V battery reset and clear the fault memory. In case one of the plausibility faults returns after a short test drive, diagnose it using the corresponding ISTA test plan for the wheel speed sensor faults.
The document
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
Brakes, Anti-lock brakes, Wheel speed sensor
| BMW I8 | 2014, 2015, 2016, 2017 |
|---|---|
| BMW I8 | 2019 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| B340616 | 2018-11-05. Service bulletin. "DSC ""WHEEL SPEED SENSOR"" FAULT CODES AND MALFUNCTION INDICATOR LAMP- DIAGNOSTIC. 1. DSC's fault codes stored from two different wheel speed sensors (both front or both rear): 4809B0 - wheel speed sensor - front left - drive off recognition faulty and 4809CD - wheel speed sensor - front right - drive off recognition faultyor 4809B9 - wheel speed sensor - rear left - drive off recognition faulty and 480686 - wheel speed sensor - rear right - drive off recognition faulty. 2. Next ignition ON (after above codes stored). a) DME fault can occur:1F054D - drive, safety function: Drive power output reduced, DSC signals implausible and b) Malfunction Indicator Lamp (MIL) may light up. Faulty drive off recognition due to: a towing operation with a raised axle operation of the vehicle on the vehicle hoist operation of the vehicle on the roller test stand DSC diagnosis recognizes implausible wheel speeds, so no control is possible. DME fault is entered on safety grounds since the DSC fault still exists after a terminal change and may only be removed while driving." |
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