Trouble Code: 55 / P1755 - Check Flow 16

TROUBLE CODE: 55 / P1755 - HIGH LOW MOTOR POSITION SIGNAL ABNORMAL

Check Flow	Trouble Code	Phenomenon	Standard
16	55 (P1755)	High-Low motor position signal is abnormal. Circuit is shorted to GND.	___

Fig 1: Trouble Code 55 / P1755, TOD Control Unit Circuit Diagram - High Low Motor Position Signal

Courtesy of ISUZU MOTOR CO.

Fig 2: Trouble Code 55 / P1755, Diagnostic Procedure Chart - High Low Motor Position Signal Abnormal

Courtesy of ISUZU MOTOR CO.

NOTE:

Confirm the operation conditions when changing high and low range.
- The car stops. (less than 2 km/h or 1.2 mph and engine speed: less than 1500 RPM)
- The AT selector position is neutral.
- The brake is applied (brake switch: ON)
Verify the completion of changing the high/low range by the TOD indicator on the instrument panel.
When changing high/low range, start the engine to prevent the battery dead.