Test Procedure
-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK
Start diagnosis
Make sure the engine is at room temperature.
-- Disconnect the NOx Sensor Module -J583- / Nox Sensor -G295- -5, 2-. electrical harness connector.
Checking voltage and ground
-- Switch the ignition On.
-- Using a Multimeter, Check the NOx Sensor Module -J583- / Nox Sensor -G295- electrical harness connector terminals for Battery voltage and ground, Refer to applicable wiring diagram for fuse location and number.
| NOx Sensor Module -J583- / Nox Sensor -G295- electrical harness connector terminals | Measure to: |
|---|---|
| 1 | Engine Ground |
| 2 | Battery Voltage |
| 5 | Battery Voltage |
Specified value: Battery Voltage.
-- Switch the ignition Off.
Continue test according to the following table:
| Value | Cause | Test |
|---|---|---|
| If the specified value was not obtained: | Open or shorted circuit | Checking Wiring |
| If the specified value was obtained: | Check CAN Bus signal circuit | Checking CAN Bus Wiring |