P1794

Test 500 Through 503:

Test 504:

SYMPTOM:
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 CAUSING SYMPTOM
INTERMITTENT CODE P1794

Test 173 And 174:

SYMPTOM:
ADDITIONAL SPEED SENSOR GROUND ERROR (P1794)

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