Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.

Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the appropriate B130 Exhaust Gas Recirculation Temperature Sensor. It may take up to 2 min for all vehicle systems to power down.
Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
- If 10 Ω or greater
1. Ignition OFF, disconnect the X3 harness connector at the K20 Engine Control 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 K20 Engine Control Module.
- Go to next step: If less than 10 Ω
Ignition OFF, disconnect the X3 harness connector at the K20 Engine Control Module.
Test for infinite resistance between the signal circuit terminal 1 and ground.
- If less than infinite resistance
  Repair the short to ground on the circuit.
- Go to next step: If infinite resistance
Test for less than 2 Ω in the signal circuit end to end.
- If 2 Ω or greater
  Repair the open/high resistance in the circuit.
- Go to next step: If less than 2 Ω
Ignition ON.
Test for less than 1 V between the signal circuit and ground.
- If 1 V or greater
  Repair the short to voltage on the circuit.
- Go to next step: If less than 1 V
Test or replace the appropriate B130 Exhaust Gas Recirculation Temperature Sensor.
Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify that DTC does not set.
- If DTC sets
  Replace the K20 Engine Control Module
- Go to next step: If DTC does not set
All OK.