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DTC 01-21 ROM Error; DTC 01-22 RAM Error: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION CHART
| DTC No. |
DTC Detection Condition |
Trouble Area |
| 01-21 |
A malfunction exists in ROM |
Multi-display |
| 01-22 |
A malfunction exists in RAM |