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P1818 ACTUATOR POSITION SWITCH DLN-47 < DTC/CIRCUIT DIAGNOSIS > [TRANSFER: TX15B] C E F G H I J K L M A B DLN N O P P1818 ACTUATOR POSITION SWITCH Description INFOID:0000000006179466 The actuator position switch detects the current actuator motor range. DTC P1818 or flash code 12 will set if either of the following occur: • Improper signal from actuator position switch is input due to open or short circuit. • Malfunction is detected in actuator position switch. DTC Logic INFOID:0000000006179467 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:0000000006179468 Regarding Wiring Diagram information, refer to . 1. CHECK ACTUATOR POSITION SWITCH SIGNAL With CONSULT-III 1. Start engine. 2. Depress brake pedal and stop vehicle. 3. Set A/T selector lever to N position. 4. Select DATA MONITOR mode for ALL MODE AWD/4WD with CONSULT-III. 5. Read out the value of SHIFT POS SW1, SHIFT POS SW2, SHIFT POS SW3, SHIFT POS SW4. Without CONSULT-III 1. Start engine. DTC CONSULT-III Diagnostic item is detected when... Reference [P1818] SHIFT ACT POSI SW • Improper signal from actuator position switch is input due to open or short cir- • Malfunction is detected in actuator po- sition switch. Monitored item Condition Display value SHIFT POS SW1 4WD shift switch: 2WD and 4LO ON 4WD shift switch: 4H OFF SHIFT POS SW2 4WD shift switch: 4LO ON 4WD shift switch: 2WD and 4H OFF SHIFT POS SW3 4WD shift switch: 2WD and 4H ON 4WD shift switch: 4LO OFF SHIFT POS SW4 4WD shift switch: 4H and 4LO ON 4WD shift switch: 2WD OFF |