P1716

test 1 through 4:

Test 5 Through 7:

Symptom:
P1716 - BUS COMMUNICATION WITH ENGINE MODULE

POSSIBLE CAUSES
CHECKING SYMPTOMS AND POSSIBLE CAUSES
LOW BATTERY VOLTAGE CAUSING SYMPTOM
CCD BUS (+) CIRCUIT OPEN
CCD BUS (-) CIRCUIT OPEN
PCM COMMUNICATION WITH TCM DEFECTIVE
INTERMITTENT CODE P1716