TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM, Diagnostic DTC:P17AC

DTC Code DTC Name
P17AC Transfer Shift Motor Limit Switch Circuit

DESCRIPTION

When the transfer switches modes, the TL1, TL2 and TL3 terminals of the limit switch are in one of the ON/OFF combinations listed in the table below.

Terminal When H2 Switching between H2 and H4 When H4 Switching between H4 and L4 When L4
TL1 ON (GND) ON (GND) OFF (OPEN) OFF (OPEN) OFF (OPEN)
TL2 OFF (OPEN) OFF (OPEN) OFF (OPEN) ON (GND) ON (GND)
TL3 OFF (OPEN) ON (GND) ON (GND) ON (GND) OFF (OPEN)

A malfunction is detected depending on the combination of the 3 circuits that make up the limit switch of the transfer shift actuator assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
P17AC Transfer Shift Motor Limit Switch Circuit

  • Diagnosis Condition: Directly after the ignition switch is turned to ON, or while switching between H2 and H4 or while switching between H4 and L4 (transfer shift motor operating) with the ignition switch turned to ON

  • Malfunction Status: The combination of TL1, TL2 and TL3 does not match the pattern

  • Malfunction Time: 0 seconds

  • Other: 1 trip detection logic

  • Wire harness and connector

  • 4 wheel drive control ECU

  • Transfer shift actuator assembly

WIRING DIAGRAM

B0068IXE02
*a Limit Switch
*b Transfer Shift Actuator Assembly
*c 4 Wheel Drive Control ECU

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (4 WHEEL DRIVE CONTROL ECU - TRANSFER SHIFT ACTUATOR ASSEMBLY)


    1. Disconnect the C39 4 wheel drive control ECU connector.

    2. Disconnect the C41 transfer shift actuator assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      C39-11 (TL1) - C41-3 (TL1) Always Below 1 Ω
      C39-10 (TL2) - C41-4 (TL2) Always Below 1 Ω
      C39-9 (TL3) - C41-5 (TL3) Always Below 1 Ω
      C41-6 (GND1) - Body ground Always Below 1 Ω
      C39-11 (TL1) or C41-3 (TL1) - Body ground Always 10 kΩ or higher
      C39-10 (TL2) or C41-4 (TL2) - Body ground Always 10 kΩ or higher
      C39-9 (TL3) or C41-5 (TL3) - Body ground Always 10 kΩ or higher
      C39-11 (TL1) - C41-4 (TL2) and C41-5 (TL3) Always 10 kΩ or higher
      C39-10 (TL2) - C41-3 (TL1) and C41-5 (TL3) Always 10 kΩ or higher
      C39-9 (TL3) - C41-3 (TL1) and C41-4 (TL2) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK 4 WHEEL DRIVE CONTROL ECU (ECU OUTPUT VOLTAGE)


    1. B0068IQC06
      *a

      Front view of wire harness connector

      (to Transfer Shift Actuator Assembly)

      Disconnect the C41 transfer shift actuator assembly connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      C41-3 (TL1) - Body ground Ignition switch ON 10 to 14 V
      C41-4 (TL2) - Body ground Ignition switch ON 10 to 14 V
      C41-5 (TL3) - Body ground Ignition switch ON 10 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY Click here

    NG

    REPLACE 4 WHEEL DRIVE CONTROL ECU Click here