Circuit/System Testing
- Ignition OFF, disconnect the harness connector one of the following components:
- S30 Headlamp Switch
- S48E Multifunction Switch - Center Console
- S48C Multifunction Switch 1 - Instrument Panel (Base)
- S48C Multifunction Switch 1 - Instrument Panel (Uplevel)
- S48D Multifunction Switch 2 - Instrument Panel
- E32 Cigarette Lighter Receptacle
- S27 Head-Up Display Switch
- X85 Steering Wheel Air Bag Coil
- B80 Park Brake Switch
- S111 Night Panel Switch
- Test for less than 5 Ω between the ground circuit terminals listed below and ground:
- S30 Headlamp Switch Terminal X1 6
- S48E Multifunction Switch - Center Console X1 2
- S48C Multifunction Switch 1 - Instrument Panel Terminal X1 1 (Base)
- S48C Multifunction Switch 1 - Instrument Panel Terminal X1 X1 5 (Uplevel)
- S48D Multifunction Switch 2 - Instrument Panel Terminal X1 1
- E32 Cigarette Lighter Receptacle Terminal X1 C
- S27 Head-Up Display Switch Terminal X1 2
- X85 Steering Wheel Air Bag Coil Terminal X1 2
- B80 Park Brake Switch Terminal X1 8
- S111 Night Panel Switch Terminal X1 2
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Disconnect each remaining component and test for less than 5 Ω between the ground circuit terminal and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Disconnect the harness connector X2 at the K9 Body Control Module.
- Test for less than 0.3 V between the appropriate multifunction switch terminal listed below and ground:
- S30 Headlamp Switch Terminal X1 7
- S48E Multifunction Switch - Center Console X1 1
- S48C Multifunction Switch 1 - Instrument Panel Terminal X1 2 (Base)
- S48C Multifunction Switch 1 - Instrument Panel Terminal X1 X1 10 (Uplevel)
- S48D Multifunction Switch 2 - Instrument Panel Terminal X1 10
- E32 Cigarette Lighter Receptacle Terminal X1 B
- S27 Head-Up Display Switch Terminal X1 5
- X85 Steering Wheel Air Bag Coil Terminal X1 6
- B80 Park Brake Switch Terminal X1 6
- S111 Night Panel Switch Terminal X1 2
- If greater than the specified range, test the circuit for a short to voltage. If the circuits test normal, replace the appropriate switch.
- Test for greater than 500 K.Ω between the appropriate switch terminal listed below and ground:
- S30 Headlamp Switch Terminal X1 7
- S48E Multifunction Switch - Center Console X1 1
- S48C Multifunction Switch 1 - Instrument Panel Terminal X1 2 (Base)
- S48C Multifunction Switch 1 - Instrument Panel Terminal X1 X1 10 (Uplevel)
- S48D Multifunction Switch 2 - Instrument Panel Terminal X1 10
- E32 Cigarette Lighter Receptacle Terminal X1 B
- S27 Head-Up Display Switch Terminal X1 5
- X85 Steering Wheel Air Bag Coil Terminal X1 6
- B80 Park Brake Switch Terminal X1 6
- S111 Night Panel Switch Terminal X1 2
- If lower than the specified range, test the circuit for a short to ground. If the circuits test normal, replace the appropriate switch.
- Test for less than 5 Ω between harness connector K9 Body Control Module terminal 8 X2 and the appropriate switch terminal listed below:
- S30 Headlamp Switch Terminal X1 7
- S48C Multifunction Switch 1 - Instrument Panel Terminal X1 2 (Base)
- S48C Multifunction Switch 1 - Instrument Panel Terminal X1 X1 10 (Uplevel)
- S48D Multifunction Switch 2 - Instrument Panel Terminal X1 10
- E32 Cigarette Lighter Receptacle Terminal X1 B
- S27 Head-Up Display Switch Terminal X1 5
- X85 Steering Wheel Air Bag Coil Terminal X1 6
- B80 Park Brake Switch Terminal X1 6
- S111 Night Panel Switch Terminal X1 3
- If greater than the specified range, test the circuit for a for open/high resistance. If the circuits test normal, replace the appropriate switch.
- If all circuits test normal, replace the K9 Body Control Module.