Code 26 - Quad-Driver Error (With 3T40 Trans.) (2 Of 3): Notes
On models with 3T40 transmission, QDM "A" fault status on scan tester should read HIGH until 2nd gear switch is closed or brake is applied. To simulate driving in 2nd gear and change status to LOW, disconnect TCC connector, and connect test light between harness terminals "A" and "D".
NOTE:
Test number refers to number on diagnostic chart.
- 3)
This step determines which circuit is out of specification.