Circuit/System Testing

Ignition OFF and all vehicle systems OFF, scan tool disconnected, disconnect the harness connector at the K183 Near Field Communication Module. It may take up to 2 min for all vehicle systems to power down.
Test for less than 30 Ω between the low reference circuit terminal 18 and ground.
- If 30 Ω or greater
1. Ignition OFF, disconnect the harness connector at the K183 Near Field Communication Module.
2. Test for less than 2 Ω in the low reference circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, replace the K183 Near Field Communication Module.
- Go to next step: If less than 30 Ω
Ignition ON.
Test for greater than 11.5V between the B+ circuit terminal 20 and ground.
- If 11.5 V or less
1. Ignition OFF, disconnect the harness connector at the K183 Near Field Communication Module.
2. Test for infinite resistance between the B+ circuit and ground.
  - If less than infinite resistance, repair the short to ground on the circuit.
  - Go to next step: If Infinite resistance.
3. Test for less than 2 Ω in the B+ circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, replace the K183 Near Field Communication Module.
- Go to next step: If greater than 11.5 V
Test for 1 - 6 V between the serial data circuit terminal 2 and ground.
- If less than 1 V
1. Ignition OFF, disconnect the harness connector at the K183 Near Field Communication Module.
2. Test for infinite resistance between the serial data circuit and ground.
  - If less than infinite resistance, repair the short to ground on the circuit.
  - Go to next step: If infinite resistance
3. Test for less than 2 Ω in the serial data circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, replace the K183 Near Field Communication Module.
- If greater than 6 V
1. Ignition OFF, disconnect the harness connector at the K183 Near Field Communication Module, ignition ON.
2. Test for less than 1 V between the serial data circuit and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
  - If less than 1 V, replace the K183 Near Field Communication Module.
- Go to next step: If between 3 - 6 V
Test for 1 - 6 V between the serial data circuit terminal 12 and ground.
- If less than 1 V
1. Ignition OFF, disconnect the harness connector at the K183 Near Field Communication Module.
2. Test for infinite resistance between the serial data circuit and ground.
  - If less than infinite resistance, repair the short to ground on the circuit.
  - Go to next step: If infinite resistance
3. Test for less than 2 Ω in the serial data circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, replace the K183 Near Field Communication Module.
- If greater than 6 V
1. Ignition OFF, disconnect the harness connector at the K183 Near Field Communication Module, ignition ON.
2. Test for less than 1 V between the serial data circuit and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
  - If less than 1 V, replace the K183 Near Field Communication Module.
Verify DTC B1D3B does not set while operating the vehicle under the conditions for running the DTC.
- If the DTC sets
  Replace the K183 Near Field Communication Module
- Go to next step: If the DTC does not set
All OK.