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P1810 4 LO SWITCH DLN-27 < DTC/CIRCUIT DIAGNOSIS > [TRANSFER: TX15B] C E F G H I J K L M A B DLN N O P P1810 4 LO SWITCH Description INFOID:0000000006179445 The 4LO switch detects that the transfer case is in 4LO range. DTC P1810 or flash code 6 will set when an improper signal from the 4LO switch is input due to an open or short circuit. DTC Logic INFOID:0000000006179446 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. DTC CONFIRMATION PROCEDURE 1. Turn ignition switch ON. 2. Perform self-diagnosis. YES >> Perform diagnosis procedure. Refer to . NO >> Inspection End. Diagnosis Procedure INFOID:0000000006179447 Regarding Wiring Diagram information, refer to . 1. CHECK 4LO POSITION SWITCH SIGNAL With CONSULT-III 1. Start engine. 2. Select DATA MONITOR mode for ALL MODE AWD/4WD with CONSULT-III. 3. Read out the value of 4L POSI SW. Without CONSULT-III 1. Start engine. 2. Check voltage between transfer control unit harness connector terminal and ground. OK or NG DTC CONSULT-III Diagnostic item is detected when... Reference [P1810] 4L POSI SW TF Improper signal from 4LO switch is input Condition Display value • Vehicle stopped 4WD shift switch: 4LO ON Except the above OFF Connector Terminal Condition Voltage (Approx.) E142 24 - Ground • Vehicle stopped N position • Brake pedal de- pressed 4WD shift switch: 4LO 0V Except the above Battery SDIA3363E |