P1780

E: P1780. D-4 SWITCH MALFUNCTION (TO VIN D15361)
CHECK IGNITION SUPPLY TO THE J-GATE.
1. Disconnect the J-Gate electrical connector, IP14.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between IP14, pin 01 (WR) and GROUND.
^ Is the voltage less than 10 volts?
-> Yes
REPAIR the circuit between IP14, pin 01 (WR) and the ignition switch (this circuit includes the Central Junction fuse box, Ignition relay, and inertia switch).
-> No

CHECK GROUND SUPPLY TO THE J-GATE.
1. Turn the ignition switch to the OFF position.
2. Measure the resistance between IP14, pin 02 (B) and GROUND.
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit.
-> No

CHECK D-4 SWITCH SIGNAL WIRE FOR HIGH RESISTANCE.
1. Disconnect the TOM electrical connector, JB1 31.
2. Measure the resistance between IP14, pin 05 (BOO) and JB131, pin 45 (BW).
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit.
-> No INSTALL a new J-Gate.