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DTC P17DF: Center Differential Lock Limit SW Circuit [08/2019 - ]: Description

When the transfer shift actuator assembly is switching between free and lock, the TL2 and TL3 terminals are in one of the ON/OFF combinations listed in the table below.

Terminal Mode
FREE Switching LOCK
TL2 OFF ON ON
TL3 ON ON OFF

A malfunction is detected depending on the combination of the 2 circuits that make up the center differential lock limit switch.

DTC No. Detection Item DTC Detection Condition Trouble Area
P17DF Center Differential Lock Limit SW Circuit
  1. When switching between free and lock (center differential lock shift motor operating) while the engine switch is turned on (IG) or directly after the engine switch is turned on (IG)
  2. The combination of TL2 and TL3 does not match
  3. 0.05 seconds or more (if directly after engine switch is turned on (IG), 1 second or more)
  4. 1 trip detection logic
  • Wire harness and connector
  • 4 wheel drive control ECU
  • Transfer shift actuator assembly
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