DTC P1729: - 4X4L Switch
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2009 Mercury Mountaineer, 2009 Mercury Milan, 2009 Mercury Mariner, 2009 Mercury Grand Marquis, and 2009 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
DTC P1729: - 4X4L SWITCH
| Description: | The 4x4L switch is an on/off switch. If the powertrain control module (PCM) does not sense appropriate voltage when the switch is cycled on and off, a DTC sets for mechanical shift on the fly (MSOF) systems. | ||
| 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 |