Operation CHARM: Car repair manuals for everyone.

Service Hints

E5 (A), E6 (B), E8 (D), E9 (E) ENGINE CONTROL MODULE
IGSW-E1 : 9.0-14.0 Volts with ignition SW at ON or ST position
BATT-E1 : Always approx. 9.0-14.0 Volts
STP-E1 : Approx. 12 Volts with stop light SW at ON below 1.5 Volts with brake pedal is released

C18 CRUISE CONTROL SW [COMB. SW]
4-3 : Approx. 418 Ohms with CANCEL SW ON
: Approx. 198 Ohms with SET/COAST SW ON
: Approx. 68 Ohms with RES/ACC SW ON