P1781 - 4X4L Switch Out Of Self-Test Range
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P1781 - 4X4L SWITCH OUT OF SELF-TEST RANGE
| Description: | The 4x4L switch is an on/off switch. If the powertrain control module (PCM) does not sense low voltage when the switch is on, the DTC sets. | |||
| Possible Causes: |
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| Diagnostic Aids: | Verify the 4x4L switch cycles on/off. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | Refer to the Workshop article part 308-07A, Four-Wheel Drive Systems. | |||