Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Engine Compartment Components

Location of components






A. Pressure switch (Pressostat)
B. Injectors
C. Boost pressure control (BPC) valve pressure servo
D. Pulse secondary air injection system (PAIR) valve
E. Turbocharger (TC) control valve
F. Central electrical unit
G. Air conditioning (A/C) relay
H. Main relay
I. Pulsed secondary air injection system (PAIR) pump relay
J. Central electrical unit engine compartment
K. Mass air flow (MAF) sensor
L. Ignition coil, Ignition discharge module (IDM)
M. Idle air control (IAC) valve
N. Canister purge (CP) valve
O. Pulsed secondary air injection system (PAIR) pump
P. Solenoid valve, pulsed secondary air injection system (PAIR)
Q. Engine cooling fan (FC) relay
R. Front/rear knock sensor (KS)
S. Accelerometer
T. Outside temperature sensor
U. Air conditioning (A/C) pressure sensor
V. Atmospheric pressure sensor
X. AW50-42 transmission control module (TCM)
Y. Motronic 4.4 engine control module (ECM)
Z. engine coolant temperature (ECT) sensor