Test Procedure
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Proceed to DTC testing steps listed in FAULT CODE SETTING CONDITION table of fault code setting condition.
FAULT CODE SETTING CONDITION
| Fault Code | Testing |
|---|---|
| P0325, P0326 | DG1 |
| P0330, P0331 | DG2 |
- DG1 KOER AND CONTINUOUS MEMORY DTCS P0325 AND P0326: CHECK THE RESISTANCE OF KS1
- Verify the KS is connected and properly installed.
- KS connector disconnected.
- Measure the resistance between:
(+) KS Connector, Component Side (-) KS Connector, Component Side KS1- KS1+
Is the resistance between 4.39M ohms - 5.35M ohms?
Yes No Key in OFF position.
GO to DG3.INSTALL a new KS. - DG2 KOER AND CONTINUOUS MEMORY DTCS P0330 AND P0331: CHECK THE RESISTANCE OF KS2
- Verify the KS is connected and properly installed.
- KS connector disconnected.
- Measure the resistance between:
(+) KS2 Sensor Connector, Component Side (-) KS2 Sensor Connector, Component Side KS2- KS2+
Is the resistance between 4.39M ohms - 5.35M ohms?
Yes No Key in OFF position.
GO to DG4.INSTALL a new KS2. - DG3 CHECK THE KS1+ CIRCUIT FOR AN OPEN IN THE HARNESS
- PCM connector disconnected.
- Measure the resistance between:
(+) KS Connector, Harness Side (-) PCM Connector, Harness Side KS1+ KS1+
Is the resistance less than 5 ohms?
Yes No GO to DG5. REPAIR the open circuit. - DG4 CHECK THE KS2+ CIRCUIT FOR AN OPEN IN THE HARNESS
- Measure the resistance between:
(+) KS2 Sensor Connector, Harness Side (-) PCM Connector, Harness Side KS2+ KS2+
Is the resistance less than 5 ohms?
Yes No GO to DG6. REPAIR the open circuit. - Measure the resistance between:
- DG5 CHECK THE KS1- CIRCUIT FOR AN OPEN IN THE HARNESS
- Measure the resistance between:
(+) KS Connector, Harness Side (-) PCM Connector, Harness Side KS1- KS1-
Is the resistance less than 5 ohms?
Yes No GO to DG7. REPAIR the open circuit. - Measure the resistance between:
- DG6 CHECK THE KS2- CIRCUIT FOR AN OPEN IN THE HARNESS
- Measure the resistance between:
(+) KS2 Sensor Connector, Harness Side (-) PCM Connector, Harness Side KS2- KS2-
Is the resistance less than 5 ohms?
Yes No GO to DG8. REPAIR the open circuit. - Measure the resistance between:
- DG7 CHECK THE KS1+ CIRCUIT FOR A SHORT TO GROUND IN THE HARNESS
- Measure the resistance between:
(+) KS Connector, Component Side (-) Vehicle Battery KS1+ Negative terminal
Is the resistance greater than 10K ohms?
Yes No GO to DG9. REPAIR the short circuit to GND. - Measure the resistance between:
- DG8 CHECK THE KS2+ CIRCUIT FOR A SHORT TO GROUND IN THE HARNESS
- Measure the resistance between:
(+) KS2 Sensor Connector, Component Side (-) Vehicle Battery KS2+ Negative terminal
Is the resistance greater than 10K ohms?
Yes No GO to DG10. REPAIR the short circuit to GND. - Measure the resistance between:
- DG9 CHECK THE KS1- CIRCUIT FOR A SHORT TO GROUND IN THE HARNESS
- Measure the resistance between:
(+) KS Connector, Harness Side (-) Vehicle Battery KS1- Negative terminal
Is the resistance greater than 10K ohms?
Yes No GO to DG11. REPAIR the short circuit to GND. - Measure the resistance between:
- DG10 CHECK THE KS2- CIRCUIT FOR A SHORT TO GROUND IN THE HARNESS
- Measure the resistance between:
(+) KS2 Sensor Connector, Harness Side (-) Vehicle Battery KS2- Negative terminal
Is the resistance greater than 10K ohms?
Yes No GO to DG12. REPAIR the short circuit to GND. - Measure the resistance between:
- DG11 CHECK THE KS1+ CIRCUIT FOR A SHORT TO POWER IN THE HARNESS
- Measure the resistance between:
(+) KS Connector, Harness Side (-) PCM Connector, Harness Side KS1+ VPWR KS1+ VREF
Are the resistances greater than 10K ohms?
Yes No GO to DG13. REPAIR the short circuit to PWR. - Measure the resistance between:
- DG12 CHECK THE KS2+ CIRCUIT FOR A SHORT TO POWER IN THE HARNESS
- Measure the resistance between:
(+) KS2 Sensor Connector, Harness Side (-) PCM Connector, Harness Side KS2+ VREF KS2+ VPWR
Are the resistances greater than 10K ohms?
Yes No GO to DG14. REPAIR the short circuit to PWR. - Measure the resistance between:
- DG13 CHECK THE KS1- CIRCUIT FOR A SHORT TO POWER IN THE HARNESS
- Measure the resistance between:
(+) KS Connector, Harness Side (-) PCM Connector, Harness Side KS1- VREF KS1- VPWR
Are the resistances greater than 10K ohms?
Yes No GO to DG15. REPAIR the short circuit to PWR. - Measure the resistance between:
- DG14 CHECK THE KS2- CIRCUIT FOR A SHORT TO POWER IN THE HARNESS
- Measure the resistance between:
(+) KS2 Sensor Connector, Harness Side (-) PCM Connector, Harness Side KS2- VREF KS2- VPWR
Are the resistances greater than 10K ohms?
Yes No GO to DG16. REPAIR the short circuit to PWR. - Measure the resistance between:
- DG15 CHECK THE KS1- CIRCUIT FOR INTERMITTENT FAULTS NOTE: Carefully wiggle all accessible wiring and connectors associated with the KS circuit.
- Measure the resistance between:
(+) KS Connector, Harness Side (-) PCM Connector, Harness Side KS1- KS1-
Is the resistance less than 5 ohms?
Yes No GO to DG17. REPAIR the open circuit. - Measure the resistance between:
- DG16 CHECK THE KS2- CIRCUIT FOR INTERMITTENT FAULTS NOTE: Carefully wiggle all accessible wiring and connectors associated with the KS circuit.
- Measure the resistance between:
(+) KS2 Sensor Connector, Harness Side (-) PCM Connector, Harness Side KS2- KS2-
Is the resistance less than 5 ohms?
Yes No GO to DG18. REPAIR the open circuit. - Measure the resistance between:
- DG17 CHECK THE KS1+ CIRCUIT FOR INTERMITTENT FAULTS NOTE: Carefully wiggle all accessible wiring and connectors associated with the KS circuit.
- Measure the resistance between:
(+) KS Connector, Harness Side (-) PCM Connector, Harness Side KS1+ KS1+
Is the resistance less than 5 ohms?
Yes No INSTALL a new PCM. REFER to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . REPAIR the open circuit. - Measure the resistance between:
- DG18 CHECK THE KS2+ CIRCUIT FOR INTERMITTENT FAULTS NOTE: Carefully wiggle all accessible wiring and connectors associated with the KS circuit.
- Measure the resistance between:
(+) KS2 Sensor Connector, Harness Side (-) PCM Connector, Harness Side KS2+ KS2+
Is the resistance less than 5 ohms?
Yes No INSTALL a new PCM. REFER to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . REPAIR the open circuit. - Measure the resistance between: