Circuit/System Testing

NOTE:

It may take up to 12 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be Performed.

Ignition/Vehicle & All vehicle systems - Off
Disconnect the electrical connector: X2@X98 Battery Charger Coupler
Test for less than 10 ohms between the test points: Low Reference circuit terminal 6 & Ground
- If 10 ohms or Greater
1. Disconnect the electrical connector: X1@K16A Battery Energy Control Module 1
2. Test for less than 2 ohms between the test points: Low Reference circuit terminal 6@Component harness & Terminal 77@Control module harness
  - If 2 ohms or Greater - Repair the open/high resistance in the circuit.
  - If less than 2 ohms - Replace the component: K16A Battery Energy Control Module 1
- Go to next step: If less than 10 ohms
Ignition - On/Vehicle - In Service Mode
Verify the scan tool parameter: Hybrid/Electric Vehicle Battery AC Charger Coupler Temperature Sensor 2 = Colder than -39°C (-38°F)
- If -39°C (-38°F) or warmer
1. Ignition/Vehicle - Off
2. Disconnect the electrical connector: X1@K16A Battery Energy Control Module 1
3. Test for infinite resistance between the test points: Signal circuit terminal 5@Component harness & Ground
  - If less than infinite resistance - Repair the short to ground on the circuit.
  - If infinite resistance - Replace the component: K16A Battery Energy Control Module 1
- Go to next step: If colder than -39°C (-38°F)
Connect a 3 A fused jumper wire between the test points: Signal circuit terminal 5 & Low Reference circuit terminal 6
Verify the scan tool parameter: Hybrid/Electric Vehicle Battery AC Charger Coupler Temperature Sensor 2 = Warmer than 149°C (300°F)
- If 149°C (300°F) or colder
1. Ignition/Vehicle - Off & Remove - Jumper wire(s)
2. Disconnect the electrical connector: X1@K16A Battery Energy Control Module 1
3. Ignition - On/Vehicle - In Service Mode
4. Test for less than 1 V between the test points: Signal circuit terminal 5@Component harness & Ground
  - If 1 V or Greater - Repair the short to voltage on the circuit.
  - Go to next step: If less than 1 V
5. Ignition/Vehicle - Off
6. Test for less than 2 ohms between the test points: Signal circuit terminal 5@Component harness & Terminal 44@Control module harness
  - If 2 ohms or Greater - Repair the open/high resistance in the circuit.
  - If less than 2 ohms - Replace the component: K16A Battery Energy Control Module 1
- Go to next step: If warmer than 149°C (300°F)
Replace the component: X98 Battery Charger Coupler