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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Powertrain Management: Locations






Location of components, only B52X4 T

Location of components, only B52X4 T:




1 Engine coolant temperature (ECT) sensor
2 Ground terminal
3 Engine coolant level switch
4 A/C pressure sensor
5 Camshaft reset valve
6 Camshaft position (CMP) sensor
7 Brake pedal sensor
8 Engine speed (RPM) sensor
9 Outside temperature sensor
10 Power supply terminal
11 Fusebox
12 Relay box
13 Mass air flow (MAF) sensor
14 Canister purge (CP) valve
15 Intake air temperature (IAT) sensor
16 Boost pressure sensor
17 Turbocharger (TC) control valve
18 Ignition coil
19 Injector
20 Throttle unit
21 Engine cooling fan (FC) relay
22 Knock sensor (KS)
23 Engine control module (ECM)