https://www.pistonheads.com/gassing/top ... #seperatorMazda HQ have published a world wide bulletin for RFs built up to the middle of 2017.
Service Bulletin R087/17 on December 26, 2017 from Mazda HQ Japan to the world...
The service bulletin is available right here on Miata.net in the Garage section, under Service Bulletins section: R087/17 - RF Engine will not start due to Battery being discharged
Applies only to ND with RF
Text:
Subject: Engine will not start due to Battery being discharged
DESCRIPTION
On some vehicles, the engine will not start due to the battery being discharged.
This concern occurs on Retractable Fastback models equipped with Type A Instrument Cluster
with Multi-information Display (MID).
CAUSE
Due to a software error of the speedometer of type A instrument cluster, a dark current of 80 mA
continues to flow after the ignition is turned off in the conditions listed below. Thereby, if the vehicle
is not used for many days and left in this condition, the battery is discharged.
NOTE: A normal dark current value is about 25 – 45 mA.
Condition that the dark current of 80mA starts flowing
While Auto Cruise Control (ACC) or Adjustable Speed Limiter (ASL) is being operated or activated (when one of the ACC/ASL indicators is ON in MID as shown in figure), the ignition is switched off.
If the above condition is set, the microcomputer is not shifted into the sleep mode and the operation current of 80 mA continues flowing. If the ignition is switched off after ACC or ASL is turned off, this concern does not occur.
MASS-PRODUCTION CHANGE
The software of meter set has been changed.
SUBJECT VIN & PRODUCTION DATE RANGE
Spec. VIN Range Production Date Range
Australia JM0 ND**** ** 102832 - 103748 Oct. 25, 2016 - May 16, 2017
General (R.H.D.) JM6 ND**** ** 100479 - 100585 Nov. 1, 2016 - May 16, 2017
General (L.H.D.) JM7 ND**** ** 100871 - 101257 Nov. 1, 2016 - May 16, 2017
Europe (L.H.D. & UK Specs.) JMZ ND**** ** 121365 - 132290 Oct. 4, 2016 - May 16, 2017
US (2017 MY) with
Retractable Fastback
JM1 NDAL** H*
JM1 NDAM** H* 100016 - 106475 Oct. 4, 2016 - May 16 , 2017
REPAIR PROCEDURE
When you receive a customer complaint on this concern, use the following procedure.
1. Confirm with the customer the situation when the problem occurred asking if:
? The ignition was turned off while ACC or ASL was operating.
? The vehicle was left in this condition and not used for many days.
2. Explain to the customer the following:
? There will be a software update for instrument cluster available in the near future to solve this
concern.
? For the time being, to avoid further occurrence of this case, please always switch off ACC or
ASL before IGN OFF.
3. If the customer insists on an immediate repair, replace the speedometer (instrument cluster)
with a modified one according to the workshop manual “INSTRUMENT CLUSTER
REMOVAL/INSTALLATION”.
NOTE: Please explain to the customer that replacement of instrument cluster will cause the
mileage being set to “0” km (miles).
PARTS INFORMATION
Part Number
(NEW)
Part Number
(OLD) Description Qty. Remark
NC9B-55-471C NC9B-55-471B SPEEDOMETER 1
Check Parts
Catalogue for the
part number
applicable to the
vehicle in repair.
NC9C-55-471C NC9C-55-471B SPEEDOMETER 1
NA2E-55-471C NA2E-55-471B SPEEDOMETER 1
NC9H-55-471C NC9H-55-471B SPEEDOMETER 1
NC9S-55-471C NC9S-55-471B SPEEDOMETER 1
NA5L-55-471C NA5L-55-471B SPEEDOMETER 1
Advice subsequently is that a software fix WILL NOT be applied and that the instrument panel is to be replaced