Circuit/System Verification

Ignition ON.
Verify that DTC B1325, B1330, B1370, B1380, B1424, B1440, B1441, B1517, C0800, C0899, C12E1, P0560, or P0562 is not set.
- If any of the DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle to diagnose those DTC's first.
- If none of the DTCs are set
Verify DTC C0550 is not set.
- If DTC C0550 is set symptom byte 39 or 43
1. Program the device that set the DTC.
2. Verify the DTC does not set.
  - If the DTC sets, replace the device that set the DTC.
  - If the DTC does not set
3. All OK.
- If DTC C0550 is set with any symptom byte, except symptom byte 39 or 43
  Replace the device that set the DTC.
- If DTC C0550 is not set
All OK