Condition 1
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The PCM detects the engine speed is greater than 400 RPM for 7 seconds, an illegal TFP manual valve position switch combination for 60 seconds.
Condition 2
- The engine speed is less than 50 RPM for 0.3 second; then 50-525 RPM for 0.025 second; then the engine speed is greater than 525 RPM.
- The vehicle speed is less than 8 km/h (5 mph).
- Engine RPM sequence must occur within 30 seconds of key ON.
- The PCM detects the gear range D2, D4 or REVERSE before and after start up.
- All conditions are met for 7 seconds and AT ISS is greater than 200 RPM.
Condition 3
- The vehicle speed is greater than 8 km/h (5 mph).
- The throttle angle is greater than 10 percent.
- The PCM detects an invalid TFP switch combination state.
- The TFP switch indicates the following:
- P/N when the ratio indicates third or fourth gear for greater than 15 seconds
- Reverse when the ratio indicates D4, D3, D2, and D1 for greater than 15 seconds
- D4, D3, D2, and D1 when the ratio indicates reverse for greater than 7 seconds