E46 m54 BMW X5 2002 E53 M54 Engine Workshop Manual

BMW X5 2002 E53 M54 Engine Workshop Manual X5 2002 E53 BMW BMW https://www.carmanualsonline.info/img/1/5445/w960_5445-0.png BMW X5 2002 E53 M54 Engine Workshop Manual

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BMW X5 2002 E53 M54 Engine Workshop Manual M54 ENGINE 
Models: E53 X5, 
SOP:  3 liter - 4/00
Objectives of the Module:
Purpose of the System:
The M54 engine was developed to meet the needs for ULEV compliancy for emission con-
trol. The increa

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BMW X5 2002 E53 M54 Engine Workshop Manual 12
M54engMS43/ST036/6/2000
MS 43 NEW FUNCTIONS
ACCELERATOR PEDAL SENSOR
PWG SIGNAL MONITORING & PWG FAILSAFE OPERATION:
• As a redundant safety feature the PWG provides two separate signals from two

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BMW X5 2002 E53 M54 Engine Workshop Manual 13
M54engMS43/ST036/6/20000
MS 43 NEW FUNCTIONS
EDK THROTTLE POSITION FEEDBACK SIGNALS
The EDK throttle plate is monitored by two integrated potentiometers. The potentiometers
provide linear voltage f

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BMW X5 2002 E53 M54 Engine Workshop Manual 15
M54engMS43/ST036/6/20000
MS 43 NEW FUNCTIONS
MAIN RELAY MONITOR
The  MS  43.0  system  incorporates  a  new  monitoring  feature  for  terminal  87  (KL  87)  of  the
main relay. The relay is monit

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BMW X5 2002 E53 M54 Engine Workshop Manual 16
M54engMS43/ST036/6/2000
MS 43 NEW FUNCTIONS
EMISSION OPTIMIZED - IGNITION KEY OFF
“Emission Optimized Ignition Key Off” is a programmed feature of the MS 43 control mod-
ule. 
After  the  ECM

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BMW X5 2002 E53 M54 Engine Workshop Manual 18
M54engms43/STO36/6/00
123
DM-TL (DIAGNOSIS MODULE - TANK LEAKAGE)
FUNCTIONAL OVERVIEW:
The DM-TL is located in the drivers side rear wheel well in the X5 and next to the charcoal
canister on the E4