INPUT SIGNALS
Stop lamp, input signal
Indicates the status of the stop lamp signal from the vehicle's right-hand tail lamp. The stop lamp signal is activated by depressing the brake pedal in the vehicle.
Yes = trailer module (TRM) receives stop lamp signal from vehicle's right-hand tail lamp.
No = trailer module (TRM) does not receive stop lamp signal from vehicle's right-hand tail lamp.
OUTPUT SIGNALS
Indicates the status of signals that the trailer module (TRM) transmits to the tow hitch cable harness. The signals are activated with the aid of the normal controls/button in the vehicle.
Note. When taking this reading, the trailer must not be electrically connected to the socket on the tow hitch device for the vehicle. The trailer may only be connected to the socket if the trailer cable harness and its connectors are checked and fault-free. The socket on the tow hitch device for the vehicle is available in several variants with different numbers of poles. In the socket the output signals for fog lamps and back-up (reversing) lamps are dependent on the market.
Parking lamps
Off = trailer module (TRM) does not transmit signals to parking lamps
On = trailer module (TRM) transmits signals to parking lamps
Fog lamps
Off = trailer module (TRM) does not transmit signals to fog lamps
On = trailer module (TRM) transmits signals to fog lamps
Stop lamp, left
Off = trailer module (TRM) does not transmit signals to the left-hand stop lamp
On = trailer module (TRM) transmits signals to the left-hand stop lamp
Stop lamp, right
Off = trailer module (TRM) does not send signals to the right-hand stop lamp
On = trailer module (TRM) transmits signals to the right-hand stop lamp
Back-up (reversing) lamps
Off = trailer module (TRM) does not transmit signals to back-up (reversing) lamps
On = trailer module (TRM) transmits signals to back-up (reversing) lamps
Left turn signal lamp
Turn signal flasher off = trailer module (TRM) does not transmit signals to the left-hand turn signal lamp
Turn signal flasher on = trailer module (TRM) transmits signals to the left-hand turn signal lamp
Right turn signal lamp
Turn signal flasher off = trailer module (TRM) does not transmit signals to the right-hand turn signal lamp
Turn signal flasher on = trailer module (TRM) transmits signals to the right-hand turn signal lamp
TOW HITCH CONNECTOR
Indicates the status of the socket on the vehicle tow hitch device.
Tow hitch connector connected
Yes = tow hitch connector is connected to the socket
No = tow hitch connector is not connected to the socket
BATTERY VOLTAGE
Measurement range 0-20 V.
The normal value is 13.5-14.5 V when the generator (GEN) is charging.
The value indicates the voltage at the trailer module (TRM).
CONTENTS
Select type of description
- see «DESCRIPTION OF FROZEN VALUES»(ref-500501-S18672162732012091100000)
- see «STATUS IDENTIFIER, DESCRIPTION»(ref-500501-S24991254752012111900000)
- see «COUNTERS, DESCRIPTION»(ref-500501-S21916724352012111900000)
EXPLANATION
Not all the parameters described need to be implemented in the trailer module (TRM). This varies from system to system.
Frozen values are parameter values that are stored when a diagnostic trouble code (DTC) is stored.
BATTERY VOLTAGE CENTRAL ELECTRONIC MODULE (CEM), VALUE
Measurement range: 5 - 30 V.
Normal value when the generator (GEN) is charging: 13.0-14.5 V.
The value indicates the voltage at the central electronic module (CEM).
DISTANCE, VALUE
Measurement range: 0 - 1048575 km.
The value indicates the total mileage of the car at the time the diagnostic trouble code (DTC) was stored.
PASSENGER COMPARTMENT TEMPERATURE, VALUE
Measurement range: -40 - 80°C.
The value indicates the passenger compartment temperature at the time the diagnostic trouble code (DTC) was stored.
OUTSIDE TEMPERATURE, VALUE
Measurement range: -128 - 124°C.
The value indicates the outside temperature at the time the diagnostic trouble code (DTC) was stored.
ENGINE RUNNING, STATUS
The status displays whether the engine was running when the diagnostic trouble code (DTC) was stored.
No = the engine was not running
Yes = the engine was running