Suzuki XL7 2007 Service Manual page 3068

10A-10 Cruise Control System:
Circuit/System Testing
1. Ignition OFF, remove the inflatable restraint steering
wheel module. Refer to "Inflatable Restraint Steering
Wheel Module Replacement: ".
2. Disconnect the harness connector of the steering
wheel controls switch - left.
3. Ignition ON, test for 10 volts or greater between the
steering wheel control supply voltage circuit terminal
1 and ground.
➢ If less than 10 volts, check for an open/high
resistance or for a short to ground on the steering
wheel control supply voltage circuit. If the circuit
tests normal, replace the BCM.
4. Ignition ON, verify that a test lamp illuminates
between B+ and the cruise control switch signal
circuit terminal 3.
➢ If the test lamp does not illuminate, test the cruise
control switch signal circuit for an open/high
resistance. If the circuit tests normal, replace the
BCM.
5. Ignition OFF, disconnect the harness connector C1
at the BCM.
6. Measure for 0 volts between the cruise control
switch signal circuit terminal 3 and ground.
➢ If greater than the specified value, test the cruise
control switch signal circuit for a short to voltage.
7. If all circuits test normal, test the component. If the
circuits and the component tests are normal, replace
the BCM.
Component Testing
NOTE
The cruise control ON/OFF switch must be
ON in order to properly measure the
resistance of the - SET, the + RES, and the
Cancel switches.
Steering Wheel Controls Switch - Left
1. Ignition OFF, remove the inflatable restraint steering
wheel module. Refer to "Inflatable Restraint Steering
Wheel Module Replacement: ".
2. Ignition OFF, disconnect the steering wheel controls
switch - left.
3. Cruise switch ON, measure the resistance between
terminals 1 and 3 at the cruise control switch side of
the connector. Individually activate and hold each
cruise control function switch and compare the
resistance reading to the values on the schematic for
the ON/OFF, SET -, the RES +, and the Cancel
switches.
➢ If any of the resistance measurements for the OFF,
ON, SET -, RES + and Cancel switches are not
within the listed resistance values, replace the
steering wheel controls switch - left.
Function Switch
OFF
ON
- SET
+ RES
Cancel
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: ".
• "Steering Wheel Control Switch Assembly
Replacement: "
• "Control Module References: " for BCM replacement,
setup, and programming
Minimum Maximum
Resistance Resistance
Value Value
O.L. O.L.
6.5k Ohms 7.0k Ohms
2.2k Ohms 2.4k Ohms
3.7k Ohms 3.8k Ohms
1.4k Ohms 1.6k Ohms