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DLN-208 < COMPONENT DIAGNOSIS > [TRANSFER: TX15B] P1810 4 LO SWITCH P1810 4 LO SWITCH Description INFOID:0000000001500025 The 4LO switch detects that the transfer case is in 4LO range. DTC P1810 will set when an improper signal DTC Logic INFOID:0000000001500026 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. DTC CONFIRMATION PROCEDURE 1. Turn ignition switch ON. 2. Perform self-diagnosis. Is DTC P1810 displayed? YES >> Perform diagnosis procedure. Refer to DLN-208, "Diagnosis Procedure" . NO >> Inspection End. Diagnosis Procedure INFOID:0000000001500027 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 Are the inspection results normal? YES >> GO TO 5. NO >> GO TO 2. 2. CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND 4LO SWITCH 1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.) 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 |