Discovery I (LJ) V8-3.9L (1994)
Code 41 - 50: Testing and Inspection
Code 44 & 45
NOTE: If code 29 is present, all other fault codes stored are unreliable and must be ignored.
Multi-meter Code Diagnosis
Code 44 - Indicates a left bank heated oxygen sensor fault. Do Test K.
Code 45 - Indicates a right bank heated oxygen sensor fault. Do Test K. See: Powertrain Management/Computers and Control Systems/Testing
and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Manufacturer Code Charts/Codes 44 & 45