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)

Or, hide this message: temporarily or permanently

Engine Control Module: Locations

ECM Wiring Location:








1 = RADIATOR COOLING FAN MOTOR SWITCH
2 = COOLANT TEMPERATURE GAUGE SENSING UNIT
3 = EXHAUST GAS RECIRCULATION VACUUM SWITCHING VALVE
4 = AIR TEMPERATURE SENSOR
5 = COOLANT TEMPERATURE SENSOR
6 = THROTTLE POSITION SWITCH (M/T ONLY), THROTTLE POSITION SENSOR (A/T ONLY)
7 = FUEL INJECTOR
8 = MANIFOLD ABSOLUTE PRESSURE SENSOR CONNECTOR
9 = GENERATOR CONNECTIONS
10 = STARTER MOTOR CONNECTION
11 = GROUND CONNECTION
12 = IDLE SPEED CONTROL SOLENOID VALVE
13 = BATTERY POSITIVE TERMINAL
14 = ENGINE WIRING HARNESS
15 = DISTRIBUTOR WIRING
16 = OXYGEN SENSOR CONNECTOR
17 = OIL PRESSURE SWITCH CONNECTOR