Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
22
EIgnition key warning/audible ignition key
warningIgnition switch
23EDriver’s door openDriver’s door jamb switch
24Not used
25EFuel consumption signalBoard computer (Z3 Versions)
26Not used
X271
Pin Type Description/Function Connection
1
AFuel level sensorFuel tank sensors
2Not used
3AGround supply for fuel tank sensor and
vehicle speed sensorFuel tank sensor and vehicle speed
sensor
4EPosition signal (TW)Vehicle speed sensor
5Not used
6EA/C-ON-signalAir condition switch (Z3 Versions)
7EActivate A/CPressure switch, normal speed relay
(Z3 Versions)
8Not used
9EOil level signalThermal oil level sensor (TOENS) control
module (Z3 Versions)
10Not used
11Not used
12Not used
