Circuit/System Testing
- Ignition/Vehicle & All vehicle systems - Off
- Disconnect the electrical connector: S48C Multifunction Switch 1 - Instrument Panel
- Test for less than 10 ohms between the test points: Ground circuit terminal 10 & Ground
- If 10 ohms or greater
- Disconnect the ground connection: G203
- Test for less than 2 ohms between the test points: Ground circuit terminal 2 @ S48C Multifunction Switch 1 - Instrument Panel & Terminal G201
- If 2 ohms or greater - Repair the open/high resistance in the circuit.
- If less than 2 ohms - Repair the open/high resistance in the ground connection.
- Go to next step: If less than 10 ohms
- Ignition - On / Vehicle - In Service Mode
- Verify the scan tool parameter: Traction Control Switch @ K9 Body Control Module=Inactive
- If not the specified state
- Ignition/Vehicle - Off
- Disconnect the electrical connector: X2 Harness Connector @ K9 Body Control Module
- Test for infinite resistance between the test points: Signal circuit terminal 14 @ X2 Harness Connector & Ground
- If less than infinite resistance - Repair the short to ground on the circuit.
- If infinite resistance - Replace the component: K9 Body Control Module
- Go to next step: If the specified state
- Connect a 3 A fused jumper wire between the test points: Signal circuit terminal 3 & Ground circuit terminal 10
- Verify the scan tool parameter: Traction Control Switch @ K9 Body Control Module=Active
- If not the specified state
- Ignition/Vehicle - Off & Remove - Jumper wire(s)
- Disconnect the electrical connector: X2 Harness Connector @ K9 Body Control Module
- Ignition - On / Vehicle - In Service Mode
- Test for less than 1 V between the test points: Signal circuit terminal 14 @ X2 Harness Connector & Ground
- If 1 V or greater - Repair the short to voltage on the circuit.
- Go to next step: If less than 1 V
- Ignition/Vehicle - Off
- Test for less than 2 ohms between the test points: Signal circuit terminal 7 @ S48C Multifunction Switch 1 - Instrument Panel & Terminal 14 @ X2 Harness Connector
- If 2 ohms or greater - Repair the open/high resistance in the circuit.
- If less than 2 ohms - Replace the component: K9 Body Control Module
- Go to next step: If the specified state
- Test or replace the component: S48C Multifunction Switch 1 - Instrument Panel
NOTE:
It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.
NOTE:
Circuit/System Verification must be performed before proceeding with Circuit/System Testing.