P1794

Test 1 Through 3:

Test 4 Through 5:

Symptom:
P1794-SENSOR GROUND ERROR

When Monitored and Set Condition:
P1794-SENSOR GROUND ERROR

When Monitored:
Continuously after a reset (Ignition key is turned from the OFF to RUN position and/or key is turned from the CRANK to the RUN position). With the transmission range sensor in neutral.

Set Condition:
The code will set after a Transmission Control Module (TCM) reset, with the transmission in neutral and a input to output speed ratio error.

POSSIBLE CAUSES
CHECKING SYMPTOMS AND POSSIBLE CAUSES
LOW BATTERY VOLTAGE
INTERMITTENT CODE P1794

test 1 through 2:

Symptom:
ADDITIONAL SPEED SENSOR GROUND ERROR (P1794)

POSSIBLE CAUSES
SECONDARY IGNITION CABLES
SPEED SENSOR GROUND CIRCUIT OPEN
TCM SPEED SENSOR GROUND OPEN