Lotus Evora. Manual - part 38

 

 

Lotus Service Notes   

 

 

  Section EMR

Software Incompatible with VDCM

U0316  Software Incompatible with VDCM

Description:

The ECM checks that the Vehicle Dynamic Control Module (VDCM) matches the vehicle variant code. If not 

the above code will be set and the ECM will not respond to torque requests from the VDCM.

Potential failure modes:

•  The  ECM  has  been  programmed  with  an  incorrect  variant  code  which  does  not  match  vehicle  VDCM

level.

•  VDCM error.

Diagnostic Mask:

•  The service light will be illuminated for 30 seconds after engine start if the fault was present on the previous

trip.

2009/02

 

 

Lotus Service Notes   

 

 

  Section EMR

EMR.2 - CAN BUS DIAGNOSTICS; LOTUS TECHCENTRE

Controller Area Network (CAN) is an electronic standard to allow high speed communication between mod-

ules and controllers, via a serial data bus.  The bus is a circuit linking the modules to the controller, consisting 

of a pair of cables, twisted together to reduce electromagnetic interference, and carrying a square wave voltage 

signal corresponding to '0's and '1's, coded in such a way as to identify and prioritise the individual messages. 

On the Evora, CAN based systems include; engine management, safety restraint, anti-lock braking and related 

features, instrument pack, and onboard diagnostics.

A 'stand alone' lap top PC loaded with 'Lotus Techcentre' software allows the CAN based serial data to 

be read.   A Vehicle Communication Device (T000T1472F) introduced for the Europa model is used to connect 

the vehicle to the laptop Lotus Techcentre.  Engine programming, live data display, diagnostics of engine, ABS 

and airbag systems, are all carried out via the Lotus Techcentre.

The minimum specification of the laptop computer for installation of the Lotus Techcentre is as follows:

Processer 1.70 Ghz; 

1 GB RAM; 

40 GB HDD; 

CDRW DVD ROM; 

WIN XP PRO; 

USB interface; 

Ethernet or Wireless LAN 

Note  that  this  laptop  should  be  dedicated  totally  to  the  Lotus Techcentre,  with  no  other  software  in-

stalled.

 

2009/02

 

 

Lotus Service Notes   

 

 

     Section FL

    

       

 

TRANSMISSION

SECTION FL

                                                    Sub-Section       Page

 

 

Introduction   

 

 

 

 

 

 

FL.1   

3

 

 

Gearchange Mechanism 

 

 

 

 

 

FL.2   

3

 

 

Lubrication   

 

 

 

 

 

 

FL.3   

6

 

 

Driveshafts   

 

 

 

 

 

 

FL.4   

6

 

 

Transmission Removal/Replacement   

 

 

 

FL.5   

10

 

 

Transmission Overhaul  

 

 

 

 

 

FL.6   

10

 

 

 

Lotus Service Notes   

 

 

     Section FL

NCF

288E

108

NEW FEATURES — MANUAL TRANSAXLE

MANUAL TRANSAXLE

3

EA60 AND EA61 MANUAL TRANSAXLE

1. General

EA60/EA61 manual transaxles are newly developed 6-speed manual transaxles. These transaxles realize a
compact construction and excellent shift feeling due to the following items.

Feature

Item

Compact Construction

 Twin (No.1 and No.2) output shafts are used.

 The 4th & 5th and 1st & reverse drive gears share.

Excellent Shift Feeling

 Multi-cone type (for 1st to 4th) and lever type (for reverse) synchromesh

mechanisms are used.

 Constant mesh type reverse gear is used.

 Slide ball bearings are used for the shift fork shafts and shift & select lever shaft.

 Rolling type rock ball is used for shift & select lever shaft.

288NF03Y

View from A Side

Sliding Ball

Bearings

Sliding Ball Bearings

Shift Fork Shafts

A

Sliding Ball Bearing

Shift & Select

Lever Shaft

Sliding Ball

Bearing

Output Shaft No. 1

Input Shaft

Triple-cone

Synchromesh

Mechanisms

Double-cone

Synchromesh

Mechanism

Output Shaft No. 2

288NF04Y

EA60 and EA61 Manual Transaxles

Rolling Type

Rock Ball

GENERAL LAYOUT

                                  View rotated for clarity

                              This gear also       This output gear also         

                              mates with          mates with differential         

                              1st gear on         crownwheel

                              shaft 1

                        Reverse

                        5th

                      6th

       

                                                      1st

              4th

                                                                    

                3rd                                   

                                                      2nd

                      Crownwheel                  Differential