Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Saab >> 2005 >> 9-2X Linear, 251, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System (Diagnostics) >> Cruise Control Module I/O Signal >> Electrical Specification

Electrical Specification

Fig 1: Identifying Cruise Control Module Terminals
G03874190Courtesy of SAAB-SCANIA OF AMERICA, INC.
ELECTRICAL SPECIFICATION

Content Terminal No. Measuring condition and I/O signal (ignition switch ON and engine idling)
Cruise indicator light 1
  • Battery voltage is present when main switch is turned OFF.
  • "0 V" voltage is present when main switch is turned ON.
Cruise set indicator light 3
  • "0 V" voltage is present when cruise control is set and operated.
  • Battery voltage is present when cruise control is not set and not operated.
Inhibitor switch (AT model) 4
  • Battery voltage is present when selector lever is other than "P" or "N" position.
  • "0 V" voltage is present when selector lever is set to "P" or "N" position.
Motor B 5
  • ON-and-OFF ("0 V"-and-battery voltage) operation is alternately repeated while cruise control is operating.
  • "0 V" voltage is present when main switch is turned OFF.
Ground 6 -
Motor A 7
  • ON-and-OFF ("0 V"-and-battery voltage) operation is alternately repeated while cruise control is operating.
  • "0 V" voltage is present when main switch is turned OFF.
RES/ACC switch 9
  • Battery voltage is present when switch is turned to RES/ACC position.
  • "0 V" voltage is present when switch is released.
SET/COAST switch 10
  • Battery voltage is present when switch is turned to SET/COAST position.
  • "0 V" voltage is present when switch is released.
Main power supply 11
  • Battery voltage is present when ignition switch is turned ON.
  • "0 V" voltage is present when ignition switch is turned OFF.
Ignition switch 12
  • Battery voltage is present when ignition switch is turned ON.
  • "0 V" voltage is present when ignition switch is turned OFF.
Motor C 13
  • ON-and-OFF ("0 V"-and-battery voltage) operation is alternately repeated while cruise control is operating.
  • "0 V" voltage is present when main switch is turned OFF.
Motor clutch 14
  • ON-and-OFF ("0 V"-and-battery voltage) operation is alternately repeated while cruise control is operating.
  • "0 V" voltage is present when vehicle is stopped.
Cruise control main switch 15
  • Battery voltage is present while the cruise control main switch is depressed.
  • "0 V" voltage is present when cruise control main switch is turned OFF.
Brake switch 16 Leave clutch pedal released (MT model), while cruise control main switch is turned ON.
Then check that;
  • Battery voltage is present when brake pedal is released.
  • "0" volt is present when brake pedal is depressed.

Additionally for MT model, release the brake pedal with the cruise control main switch ON.
Then check that;
  • Battery voltage is present when clutch pedal is released.
  • "0" volt is present when clutch pedal is depressed.
Data link connector 17 -
Data link connector 18 -
Vehicle speed sensor (MT model)
TCM (AT model)
19 Lift-up the vehicle until all four wheels are raised off ground, and then rotate any wheel manually.
Approx. "5" and "0" volt pulse signals are alternately input to cruise control module.
Stop light switch 20 Turn ignition switch to OFF.
Then check that;
  • Battery voltage is present when brake pedal is depressed.
  • "0" volt is present when brake pedal is released.
NOTE: Voltage at terminals 5, 7, 13 and 14 cannot be checked unless vehicle is driving by cruise control operation.