P1705

DTC P1705
High/Low range sensing.

Possible causes by suggested order of priority:
^ Range switch not operating.
^ Open circuit C685/2 (B) to vehicle earth.
^ Open circuit C685/1 (RK) to C193/13 (RK).
^ Connectors EAT C193, C685.
^ Range switch faulty.

Range Switch Not Operating.
^ Use Live Data reading to display the position of the range switch currently being read by the transmission ECU.
CHECK THE FOLLOWING:
^ Move the range switch between high and low range and check if the display changes correctly.
POSSIBLE FAULTS
^ Range switch not operating correctly.
^ Range switch circuit fault.

Open Circuit C685/2 (B) to Vehicle Earth.
OPEN_CIRCUIT
^ Check resistance > 1M Ohm

Open Circuit C685/1 (RK) to C193/13 (RK).
OPEN_CIRCUIT
^ Check resistance > 1M Ohm

Connectors EAT C193, C685.
CONNECTOR
^ Check for connector not correctly latched, backed out pins, damaged pins, corroded pins.

Range Switch Faulty
CHECK THE FOLLOWING:
^ Check the range switch is correctly set so that it closes when in the low range position.
^ Check that the switch has a low resistance in low range and a high resistance in the high range position.
^ The switch should be tested using a multimeter or suitable test equipment.
POSSIBLE FAULTS
^ Range switch incorrectly set.
^ Range switch fault.