LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2009 >> Yaris Base, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Audio System & Visual System) >> Audio And Visual System >> DTC 01-21 ROM Error; DTC 01-22 RAM Error >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC 01-21 ROM Error; DTC 01-22 RAM Error: Description

WARNING: This page is about a different car, the 2009 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
01-21 A malfunction exists in ROM. Multi-display
01-22 A malfunction exists in RAM.
scientia non olet · About LEMON Manuals