
2000 Chevrolet Corvette 5.7L Code P1638
Car came in with multiple [...] a defective battery and tightening the ground cable on the block solved some of the weirder ones. Was setting a P1637 code. (Gen L term.) Using GM's code chart (I should know better) led me to replace the alt. Now it charges...
FIX posted 2/11/2019
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Message Closed w/FIX
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VIN | 1G1YY32GXY |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Code P1638 |
Occurs | Intermittently |
Trouble Codes
P1638 | TCM Internal - CAN 1 RAM Performance |
Message Closed w/FIX
Vehicle Data
2000 Chevrolet Corvette
VIN | 1G1YY32GXY |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Code P1638 |
Occurs | Intermittently |
Trouble Codes
P1638 | TCM Internal - CAN 1 RAM Performance |