FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

P1739

Test 1 Through 2:






SYMPTOM:
P1739-POWER UP AT SPEED

When Monitored and Set Condition:
P1739-POWER UP AT SPEED

When Monitored:
When TCM (Transmission Control Module) initially powers-up.

Set Condition:
If the TCM powers up and senses a valid forward gear PRNDL code and the output RPM is above 800 RPM (approx. 20 MPH) the code will be set.

POSSIBLE CAUSES
POWER UP AT SPEED