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Home >> Toyota >> 1990 >> Cressida >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - EFI >> Retrieving Trouble Codes >> Notes

Retrieving Trouble Codes: Notes

CAUTION: DO NOT enter self-diagnostic system until all basic engine checks (engine, fuel and spark) have been performed. See BASIC TESTING article in this section.
Fig 1: Example of Toyota Trouble Codes
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NOTE: For 1989, Cressida has 2 types of diagnostic modes: normal and test. To prevent damage to ECU, only jumper terminals specified.