P1768

Test 1 Through 2:

Test 3 Through 7:

Test 8 Through 11:

SYMPTOM:
P1768-RELAY OUTPUT ALWAYS OFF

When Monitored and Set Condition:
P1768-RELAY OUTPUT ALWAYS OFF

When Monitored:
Continuously

Set Condition:
This code is set when less than 3 volts are present at the transmission control relay output (pins 16,17 and 36) circuits at the Transmission Control Module (TCM) when the TCM is energizing the relay.

POSSIBLE CAUSES
INTERMITTENT WIRING AND CONNECTORS CONDITIONS
GROUND CIRCUIT OPEN
FUSED B(+) CIRCUIT OPEN
TRANSMISSION RELAY CONTROL CIRCUIT OPEN
TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN
TRANSMISSION RELAY CONTROL CIRCUIT SHORTED TO GROUND
TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT SHORTED TO GROUND
TRANSMISSION CONTROL RELAY STUCK OPEN
REPLACE THE TCM P-1768