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P1810 4 LO SWITCH DLN-213 < 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:0000000007357505 The 4LO switch detects that the transfer case is in 4LO range. DTC P1810 will set when an improper signal from the 4LO switch is input due to an open or short circuit. DTC Logic INFOID:0000000007357506 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 DLN-213, "Diagnosis Procedure" . NO >> Inspection End. Diagnosis Procedure INFOID:0000000007357507 Regarding Wiring Diagram information, refer to 1. CHECK 4LO POSITION SWITCH SIGNAL With CONSULT 1. Start engine. 2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT. 3. Read out the value of “4L POSI SW”. Without CONSULT 1. Start engine. 2. Check voltage between transfer control unit harness connector terminal and ground. Are the inspection results normal? DTC CONSULT 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.) M165 24 - Ground • Vehicle stopped “N” position • Brake pedal de- pressed 4WD shift switch: 4LO 0V Except the above Battery SDIA3363E August 2012 2012 Pathfinder |