Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC TROUBLE CODE CHART

DTC

Description

DTC 11 ⁽¹⁾

ROOM TEMPERATURE SENSOR CIRCUIT

DTC 12 ⁽²⁾

AMBIENT TEMPERATURE SENSOR CIRCUIT

DTC 13

EVAPORATOR TEMPERATURE SENSOR CIRCUIT

DTC 14

ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT

DTC 21 ⁽³⁾

SOLAR SENSOR CIRCUIT

DTC 22 ⁽⁴⁾

Compressor Lock Sensor Circuit

DTC 23

PRESSURE SWITCH CIRCUIT

DTC 31

41 Air Mix Damper Position Sensor Circuit

DTC 32

42 Air Inlet Damper Position Sensor Circuit

DTC 33

43 Air Outlet Damper Position Sensor Circuit

DTC 41

AIR MIX CONTROL SERVOMOTOR CIRCUIT

DTC 42

AIR INLET CONTROL SERVOMOTOR CIRCUIT

DTC 43

AIR OUTLET DAMPER CONTROL SERVOMOTOR CIRCUIT

⁽¹⁾	IF THE ROOM TEMP. IS APPROXIMATELY -18.6°C (-3.7°F) OR LOWER, TROUBLE CODE 11 MAY BE OUTPUT EVEN THOUGH THE SYSTEM IS NORMAL

⁽²⁾	IF THE AMBIENT TEMP. IS APPROXIMATELY -52.9°C (-61.4°F) OR LOWER, A MALFUNCTION CODE MAY BE OUTPUT EVEN THOUGH THE SYSTEM IS NORMAL

⁽³⁾	IF THE CHECK IS BEING PERFORMED IN A DARK PLACE, DTC 21 (SOLAR SENSOR CIRCUIT ABNORMAL) COULD BE DISPLAYED

⁽⁴⁾	TO CONFIRM DTC 22, PERFORM THE FOLLOWING STEPS: (1) WITH THE ENGINE IS RUNNING, ENTER THE DTC CHECK MODE, (2) ENTER ACTUATOR CHECK MODE AND SET THE OPERATION TO STEP No. 1, (3) CHECK THAT THE DTC 22 IS OUTPUT