Subject: | SES Light On Cruise Control Inoperative P0833 DTC |
Models: | 2005 Chevrolet Corvette |
Equipped with MN6 Manual Transmission Only |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
A customer may comment of the SES light on and the cruise control is inoperative. Further investigation will show DTC P0833 stored. There are 3 possible concerns. First, the clutch switch is mis-adjusted. Second may due to a software concern in the ECM. Third the customer may be inducing the concern by "riding" the clutch.
First, inspect the clutch switch adjustment per bulletin. 05-08-68-001
• | The lower switch, the Clutch Pedal Position (CPP) Switch provides feedback to the PCM that the clutch pedal has been depressed to enable starting. The CPP Switch DOES NOT relate to the P0883 code. |
• | The upper switch, the Clutch Release Switch also referred to in SI as the Clutch Cruise Control Release Switch, provides the PCM feedback as to the position of the clutch pedal. |
• | Refer to Manual Transmission Component Views, Figure 2: 01 Y-Car: Comp Loc Views (Under LH Side of the Dash) SI Document ID # 714735 for switch locations. |
Second, reprogram the ECM with an updated calibration in TIS-2-WEB. This calibration can be located under the "Engine Diagnostic". tab and select the calibration labeled...
"New calibration with diagnostic enhancements for DTC P0833"
Third, if the customer is "riding" the clutch, discuss this with the customer. This will prevent the customer from inducing the DTC. Refer to bulletin 05-08-68-001 for more information.
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.