Toyota Celica 2005, Repair Manual

Page: 206 / 2497

D07259
Hand − Held Tester
DLC3
BR3904
0.13 sec
0.13 sec
ON
OFF
− DIAGNOSTICS ENGINE (1ZZ − FE)
DI − 7
2005 CELICA (RM1131U)
S
Check the pending fault code using the Continuous
Test Results function (Mode 7 for SAE J1979) on the
OBD II scan tool.
(b) Clearing the DTCs using the OBD II scan tool or the
hand
− held tester.
(1) Connect the OBD II scan tool or the hand − held tes-
ter to the DLC3.
(2) Turn the ignition switch ON.
(3) Erase DTCs and freeze frame data with the OBD II
scan tool (complying with SAE J1978) or the hand
−
held tester. For the hand − held tester: 1) enter the
following menus: DIAGNOSIS / ENHANCED OBD
II / DTC INFO / CLEAR CODEDS; and 2) press
YES. For the OBD II scan tool, see its instruction
manual.
(c) Clearing the DTCs not using the OBD II scan tool or the
hand
− held tester.
Remove the EFI fuse from the engine room J/B for more
than 60 seconds, or disconnect the battery terminal for
more than 60 seconds.
After disconnecting the battery terminal, perform the ”INI-
TIALIZE procedure.
3. DTC CHECK (Check Mode)
HINT:
Hand
− held tester only:
Check mode has a higher sensitivity to detect malfunctions and
can detect malfunctions that normal mode cannot detect.
Check mode can also detect all the malfunctions that normal
mode can detect.
(a) Follow these steps when preparing to use the hand − held
tester check mode.
(1)
Make sure that the items below are true:
S
Battery positive voltage 11 V or more
S
Throttle valve fully closed
S
Transmission in the P or N position
S
A/C switched OFF
(2) Turn the ignition switch OFF.
(3) Connect the hand − held tester to the DLC3.
(4) Turn the ignition switch ON.
(5) Change the ECM to check mode with the hand −
held tester. Enter the following menus: DIAGNOSIS
/ ENHANCED OBD II / CHECK MODE. Make sure
the MIL flashes as shown in the illustration.
NOTICE:
All DTCs and freeze frame data recorded will be erased if:
1) the hand
− held tester is used to change the ECM from
normal mode to check mode or vice − versa; or 2) during
check mode, the ignition switch is turned from ON to ACC
or OFF.
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