Toyota Celica 2005 Repair Manual page 288

INSPECTION PROCEDURE
HINT:
If different DTCs related to different systems that have terminal E2 as the ground terminal are output
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simultaneously, terminal E2 may be open.
Read freeze frame data using the hand−held tester or the OBD II scan tool. Freeze frame data records
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the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can
help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air−fuel
ratio was lean or rich, as well as other data from the time when a malfunction occurred.
1 Connect OBD II scan tool or hand−held tester, and read value of
engine coolant temperature.
PREPARATION:
(a) Connect the hand−held tester or the OBD II scan tool to the DLC3.
(b) Turn the ignition switch ON and push the hand−held tester or the OBD II scan tool main switch ON.
(c) When using hand−held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA
LIST / ALL / COOLANT TEMP.
CHECK:
Read temperature value displayed on the hand−held tester or the OBD II scan tool.
OK:
Same value as the actual engine coolant temperature and temperature displayed on the hand−
held tester or the OBD II scan tool.
RESULT:
Temperature Displayed
140°C (284°F) or more
OK (Same as present temperature)
HINT:
If there is an open circuit, the hand−held tester or the OBD II scan tool indicates −40°C (−40°F).
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If there is a short circuit, the hand−held tester or the OBD II scan tool indicates 140°C (284°F) or more.
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A
2005 CELICA (RM1131U)
DIAGNOSTICS
−40°C (−40°F)
− ENGINE (1ZZ−FE)
B Go to step 4.
C Check for intermittent problems (See page
DI−3).
287
Proceed to
A
B
C
DI−89