DTC C2194/94 Engine Speed Signal Error (Test Mode DTC): Description
WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.
The tire pressure warning ECU receives an engine speed signal from the ECM. This DTC is stored upon entering test mode, and cleared when an engine speed signal of 1000 rpm or more is detected for 3 seconds or more. This DTC is output only in test mode.
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| C2194/94 | Engine speed signal circuit malfunction |
|