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For 1990-2009 cars only

Harsh Shifts MIL Illuminated DTC P0717 Input Speed Sensor (ISS) Circuit Low Voltage - keywords code SES

Subject:Harsh Shifts, MIL Illuminated, DTC P0717 Input Speed Sensor (ISS) Circuit Low Voltage

Models:2006-2007 Buick Rainier
2006-2008 Chevrolet Trailblazer
2007-2008 Chevrolet Avalanche, Colorado, Silverado, Suburban, Tahoe
2007 Chevrolet Silverado Classic
2006-2008 GMC Envoy
2007-2008 GMC Canyon, Sierra, Yukon, Yukon XL
2007 GMC Sierra Classic
2007-2008 Hummer H3
2006-2008 Saab 9-7x
Equipped with 4L60E or 4L70E Automatic Transmission (RPO M30 or M70)



This PI was superseded to update model years. Please discard PIP4051.


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

Some customers may comment on a harsh shift, illuminated MIL and a DTC P0717 may be found as a history code in the TCM.

Recommendation/Instructions:

If diagnosis of this condition leads to removal of the pump and ISS it is important to visually inspect the condition of the ISS wires. These wires can be damaged in the area where they are exposed and not encased in conduit as shown in the figure below. WPC returns have shown that when wire damage has occurred it is usually the white wire that is damaged. If wire damage is found replace the ISS and inspect the pump cover in same area for any possible sharp points that may cause damage to the wire. Any sharp points on the pump casting in this area should be removed with a file.


Object Number: 1906437  Size: SH

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.