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Engine control unit test - CAN SAE J1939 / IES

Description
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Description

Important note on the circuit diagram

The wiring in the vehicle is only depicted according to the standard circuit diagram. Use the vehicle-specific circuit diagram for the test.

 

Setting parameters of the load transmitter

CAN SAE 1939 / IES

Explanation of the display:

The following paragraph explains the terms used in the diagnosis function [E].

TypeDisplays the load transmitter type specified in the data record. The control unit can, however, not recognize whether this type is really installed in the vehicle. In case of a fault, you should therefore first check whether the indicated type is really installed. This means that a different type was installed in this case as otherwise the vehicle would have been delivered with wrong periphery.
FunctionDisplays the status of the function, i.e. whether the load transmitter operates correctly within the specified thresholds.
ATTENTION! - Load transmitter faults are only admitted to the fault memory during a shift operation; a fault occurring during startup of the load transmitter, while the vehicle is stationary, does not cause an entry in the fault memory.
StageThe control unit divides the input signal range of all load transmitter types in 7 stages [0 - 6]. The calculated stage is displayed here.
Stage 7 is set for kick-down signals.
In the event of a fault, stage 7 is also assumed as safe condition.
KickdownKick-down is a separate input signal. The display allows this input signal to be controlled.
Stage 7 is assumed if the kick-down signal is activated.
ValueThe physical value of the input signal is displayed as actual or standardized quantity - [ms], [V] or [%].

 

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