P1784

Test 1 Through 2:

Test 3 Through 8:

Test 9 Through 12:

SYMPTOM:
P1784-LR PRESSURE SWITCH SENSE CIRCUIT

When Monitored and Set Condition:
P1784-LR PRESSURE SWITCH SENSE CIRCUIT

When Monitored:
Whenever the engine is running.

Set Condition:
The appropriate code is set if one of the pressure switches are open or closed at the wrong time in a given gear.

POSSIBLE CAUSES
RELATED RELAY DTC'S PRESENT
INTERMITTENT WIRING & CONNECTORS CONDITIONS
TRANSMISSION RELAY OUTPUT CIRCUIT OPEN
L/R PRESSURE SWITCH SENSE CIRCUIT OPEN
L/R PRESSURE SWITCH CIRCUIT SHORT TO GROUND
L/R PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
REPLACE THE TCM (L/R)
L/R PRESSURE SWITCH
LOSS OF PRIME (P-1791) PRESENT