Toyota Celica 2005, Repair Manual

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DI − 166
− DIAGNOSTICS ENGINE (1ZZ − FE)
2005 CELICA (RM1131U)
1 Are there any other codes (besides DTC P0300, P0301, P0302, P0303 or P0304)
being output?
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 / DTC
INFO / CURRENT CODES.
CHECK:
Read the DTCs.
RESULT:
Display (DTC output) Proceed to
”P0300, P0301, P0302, P0303 and/or P0304” A
”P0300, P0301, P0302, P0303 and/or P0304” and other DTCs B
HINT:
If any other codes besides P0300, P0301, P0302, P0303 or P0304 are output, perform the troubleshooting
for those DTCs first.
B Go to relevant DTC chart (See page DI − 42).
A
2 Check harness, connector and vacuum hose in engine room.
CHECK:
(a) Check the connection conditions of the wire harness and connector.
(b) Check for the disconnection, piping and break of the vacuum hose.
NG Repair or replace, then confirm that there is no
misfire (See confirmation driving pattern).
OK
3 Check connection of PCV piping.
NG Repair or replace PCV piping.
OK
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