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Conditions for Clearing the MIL/DTC P080A is a Type B DTC. Reference Information Schematic Reference PSD SIE TITLE Error: SIE linked to empty Cell ID 167881 Connector End View Reference Component Connector End Views Description and Operation Manual Transmission Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs DTC Type Reference Powertrain Diagnostic Trouble Code (DTC) Type Definitions Scan Tool Reference Control Module References for scan tool information. Circuit/System Verification Perform the clutch pedal position sensor learn procedure. Circuit/System Testing Perform the clutch pedal position sensor learn procedure. Repair Procedures
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Manual Transmission - Tremec 5-Speed (TZ0)
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Clutch Pedal Position Sensor Learn Control Module References for ECM replacement, setup and programming CLUTCH PEDAL POSITION SENSOR LEARN 1. Install a scan tool. 2. Monitor the ECM for DTCs with a scan tool. If other DTCs are set, except DTC P080A, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the applicable DTC that set. 3. With a scan tool, select Clutch Pedal Position Learn under Module Setup in Manual Transmission, and perform the following instructions displayed on the scan tool screen. 4. The scan tool will display under CPP Learn Status: Not Learned, In Process, Complete, Fail - Low Volt, Fail - High Volt, or Fail Moving. The scan tool will display under CPP Learn 5. If the scan tool indicates that DTC P080A ran and passed this ignition the CPP sensor learn procedure is complete. If the scan tool indicates DTC P080A failed or did not run this 6. Turn OFF the ignition for 30 seconds after the learn procedure has successfully completed in order to store the CPP sensor variation values in ECM history. SYMPTOMS - MANUAL TRANSMISSION Strategy Based Diagnostics IMPORTANT: The clutch pedal position (CPP) sensor learn procedure is required when the following service procedures have been An engine control module (ECM) replacement A CPP sensor replacement Any repairs which affect the CPP sensor relationship IMPORTANT: The CPP sensor learn procedure cannot be performed more than once per ignition cycle. The clutch pedal needs to be
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Manual Transmission - Tremec 5-Speed (TZ0)
Review the system operations in order to familiarize yourself with the system functions. Refer to Visual/Physical Inspection Inspect the manual transmission for excessive wear or damage. Inspect the easily accessible or visible system components for obvious damage or conditions Inspect the manual transmission for the correct fluid level. Inspect the manual transmission for fluid leaks. Inspect the manual transmission for broken or loose transmission mounts. Intermittent Test the vehicle under the same conditions that the customer reported in order to verify the system Symptom List Refer to a symptom diagnostic procedure from the following list in order to diagnose the Transmission Shifts Hard Transmission Shifts Hard into Reverse Transmission Gear Clash When Shifting Gears Transmission Noisy Transmission Jumps Out of Gear Transmission Does Not Shift into One Gear Transmission Locked in One Gear Transmission Clunk on Acceleration or Deceleration Diagnostic Starting Point - Vibration Diagnosis and Correction Vibration Analysis - Driveline Driveline Working Angles Measurement TRANSMISSION SHIFTS HARD Diagnostic Aids Hard shifting can be diagnosed easily. You should perform a static and dynamic shift test also.
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Manual Transmission - Tremec 5-Speed (TZ0)
Many simple factors could occur such as, excessive clutch pedal free travel, insufficient fluid, Test Description The numbers below refer to the step numbers on the diagnostic table. 4: This step inspects for air in the hydraulic lines, which also causes the transmission to shift 6: This step inspects for a faulty shift control. 10: This step inspects for a faulty or worn clutch pressure plate or clutch driven plate. Step Action Yes No DEFINITION: The transmission does not shift smoothly or without difficulty from one gear 1 Did you review the Symptoms - Manual Go to Step 2 Go to Symptoms 2 Inspect the clutch pedal travel. Go to Step 3 Go to Step 4 3 Remove any clutch pedal restrictions. Go to Step 4 System OK 4 Test for air in the clutch hydraulic system. Go to Step 5 Go to Step 6 5 Bleed the air from the clutch hydraulic system. System OK Go to Step 6 6 Inspect the transmission shift control for Go to Step 7 Go to Step 8 7 Replace the transmission shift tower. System OK Go to Step 8 8 Inspect the transmission for the correct type of
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Manual Transmission - Tremec 5-Speed (TZ0)
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