Contents Wiring diagrams Section: Testing & Diagnostics All sections

Engine Emmission Control: Wiring Jaguar S-type I

CA1: MEASURE THE VREF VOLTAGE AT DPFE SENSOR VEHICLE HARNESS CONNECTOR

Pinpoint Test A

A3 Is the VREF voltage between 4.0 and 6.0 Volts

A3: CHECK FOR CONTINUITY BETWEEN THE DPFE SENSOR ELECTRICAL CONNECTOR AND THE PCM HARNESS ELECTRICAL CONNECTOR

Pinpoint Test A

A1 Is the resistance less than 0.5 Ohms?

A4: CHECK THE VREF CIRCUIT CONTINUITY BETWEEN THE DPFE SENSOR ELECTRICAL CONNECTOR AND THE PCM HARNESS ELECTRICAL CONNECTOR

Pinpoint Test A

A5 Is the resistance less than 0.5 Ohms?

A5: CHECK THE VREF CIRCUIT BETWEEN THE DPFE SENSOR ELECTRICAL CONNECTOR AND THE PCM HARNESS ELECTRICAL CONNECTOR FOR SHORT TO GROUND

Pinpoint Test A

A1 Is the resistance less than 0.5 Ohms?

B1: MEASURE THE VREF VOLTAGE AT THE DPFE SENSOR VEHICLE HARNESS CONNECTOR

Pinpoint Test B

B3 Is the VREF voltage between 4.0 and 6.0 Volts

B3: CHECK THE DPFE SIGNAL CIRCUIT CONTINUITY BETWEEN THE DPFE SENSOR ELECTRICAL CONNECTOR AND THE PCM HARNESS ELECTRICAL CONNECTOR

Pinpoint Test B

B1 Is the resistance less than 0.5 Ohms?

B4: CHECK THE VREF CIRCUIT CONTINUITY BETWEEN THE DPFE SENSOR ELECTRICAL CONNECTOR AND THE PCM HARNESS ELECTRICAL CONNECTOR

Pinpoint Test B

B5 Is the resistance less than 0.5 Ohms?

B5: CHECK THE VREF CIRCUIT BETWEEN THE DPFE SENSOR ELECTRICAL CONNECTOR AND THE PCM HARNESS ELECTRICAL CONNECTOR FOR SHORT TO GROUND

Pinpoint Test B

B1 -> Yes