CEL Code 21
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CEL Code 21
Hi,
I just had my Check Engine Light turn on this afternoon. I have a '91 LS400 w/ just about 230K. I ran the CEL test, and it read code 21. What does this mean. I did a search and found something that mentioned the "solar sensor". What exactly is the issue and how would I fix this. Thanks in advance for the help.
I just had my Check Engine Light turn on this afternoon. I have a '91 LS400 w/ just about 230K. I ran the CEL test, and it read code 21. What does this mean. I did a search and found something that mentioned the "solar sensor". What exactly is the issue and how would I fix this. Thanks in advance for the help.
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