Guide / Simos 18 ECU

Simos 18 ECU

Reference pin assignments for selected Simos 18 ECU coolant-pump and turbocharger-speed signals.

Pin assignments

A 105/84 — PWM_CWP[INTER_HEAT]
Used on European vehicles.

K 91/15 — PWM_CWP[GB_COOL]
Used on some vehicles.

A 105/75 — N_TCHA
Turbocharger Hall Sensor

A 105/21 LV_SAV / PWM_WG
Secondary air/N75 wastegate for china market

Before connecting

Confirm the connector designation and pin numbering on the specific ECU and vehicle wiring diagram before making any connection. Equipment and market variants can use different assignments.