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Parking heater (597)

Parking heater (597)

Location

Parking heater (597)

Main task

An auxiliary heater is used to quickly obtain a comfortable cabin climate.

Type

Diesel heater with combustion chamber, heat exchanger, combustion fan, glow plug and integrated control module. Heating capacity, full effect 5000 W, half effect 2400 W.

Connection

Pin No. Signal type Description
1 +30 From UEC
2 Ground G30B
3 Instrument bus
6 PWM pulse Connected to fuel pump



Bus messages

The auxiliary heater control module uses the following information

Information Value/Unit From Description
Engine running ON/OFF ECM ECM must first send the signal "engine running" for the auxiliary heater to start
Remaining fuel quantity % ECM The fuel tank must be >12% full for the auxiliary heater to start
Outside temperature °C/°F BCM The outside temperature must be under 8°C (46°F) for the auxiliary heater to start
Internal heater °C/°F Water temperature in heater The water temperature in the heater must be under 80°C (176°F) for the auxiliary heater to start


The auxiliary heater control module transmits the following information

Information Value/Unit Used by Description
Diagnostic message No unit Tech2 Error message from auxiliary heater
Display text No unit SID
Consumed fuel litres MIU, IPC In order for auxiliary heater fuel consumption to be part of the total fuel consumption
Coolant temperature in heater °C/°F BCM, ACC For ACC to be able to regulate heating in the car cabin