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Home >> Cadillac >> 2005 >> Escalade ESV >> Repair and Diagnosis >> External Pages >> Different car >> Section 140 (Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Trouble Shooting) >> Diagnostic Information and Procedures >> First Gear Only - D4

First Gear Only - D4

WARNING: This page is about a different car, the 2005 GMC Yukon XL, 2005 Chevrolet Suburban, and 2005 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
First Gear Only - D4

Checks Cause
Sun Gear Shaft (649) Broken shaft or broken splines
AT Output Speed Sensor Assembly (22) Reads zero
Check for DTCs.
AT Input Speed Sensor Assembly (22) Reads zero
Check for DTCs.
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