Cruise Control Ecu: Input/Output

The diagnostic line for the cruise control system is between cruise control ECU and diagnostic socket. For Cruise Control ECU operating parameters, see CRUISE CONTROL ECU OPERATING PARAMETERS table.

The cruise control ECU does not generate fault codes, however the following system information is available via TestBook/T4:

Last switch off reason, which was due to unacceptable speed input.
Speed signal detected.
Below minimum speed threshold.
Current vehicle speed.
Recorded SET road speed.

CRUISE CONTROL ECU OPERATING PARAMETERS ⁽¹⁾

Pin No.

Condition

Volts

Ohms

All conditions

.....

Less than 0.5 to earth

⁽¹⁾	Connector connected.