Checking Cruise Control
Checking cruise control
Fault-tracing information
Hint: When a fault has been detected it is necessary to check that its symptom no longer exists.
Continue - Final check
-------------------------------------------------
Final check
Test driving
Fault-tracing information
Note! Diagnostic trouble code (DTC) 1-2-2 will always be stored if the engine is turned off after a test drive. The test drive must then be carried out again. If cruise control disengages at speeds above 35 km/h, without the ON/OFF switch, brake or clutch pedal being activated, or gear selector being moved from D to N, discontinue test driving. Fault-trace according to "Reading input and output signals" (diagnostic test mode (DTM) 5).
- Ignition off.
- Disconnect Volvo Scan Tool (ST) from data link connector (DLC).
Continue -
------------------------
Checking cruise control components/disengagement causes
Note! Drive the car at a speed greater than 35 km/h (for at least 15 seconds) and check that the following components and disengagement causes are operating. Note any deviations.
- Check that speedometer is operating correctly.
- Switch cruise control switch to ON. Activate cruise control by pressing the SET+ button. The cruise control should maintain the set speed.
- Keep the SET+ button pressed. The car speed should increase.
- Switch the cruise control switch OFF. Cruise control should disengage.
- Switch the switch to RESUME. The cruise control should return to the previously set speed.
- Press the SET- button so that the car speed is below 35 km/h. Cruise control should disengage.
- Activate cruise control. Lightly depress brake pedal. Cruise control should disengage.
- Activate cruise control. Lightly depress clutch pedal (manual transmission). Cruise control should disengage.
- Activate cruise control. Move gear selector from D to N (automatic transmission). Cruise control should disengage.
Location of Components, Cruise Control (Passenger Compartment - Cruise Control, Switch):
Is cruise control working?
Yes - VERIFIED
No - VERIFICATION FAILED
------------------------
-------------------------------------------------