Toyota 2003 COROLLA, Repair Manual Supplement

Page: 109 / 923

05I 7H -- 10
05 -- 8
-- DIAGNOSTICS ECD SYSTEM (1ND -- TV)
COROLLA Supplement (RM1129E)
BASIC INSPECTION
When a malfunction is not confirmed by the DTC (Diagnostic Trouble Code) check, troubleshooting should
be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out
the basic engine check shown in the following flowchart, the location of the problem can be found quickly
and efficiently. Therefore, using this check is essential when engine troubleshooting.
1 CHECK BATTERY VOLTAGE
NOTICE:
Carry out this check with the engine stopped and ignition switch OFF.
OK NG
Voltage 11 V o r m o r e Less than 11 V
NG CHARGE OR REPLACE BATTERY
OK
2 CHECK IF ENGINE W ILL CRANK
NG PROCEED TO PROBLEM SYMPT OMS TABLE
ON PAGE 05 -- 10
OK
3 CHECK AIR FILTER
(a) Visually check that the air filter is not excessively contaminated with dirt or oil.
NG CLEAN OR REPLACE
OK
4 CHECK FUEL QUALITY
(a) Check that only diesel fuel has been used.
(b) Check that the fuel does not contain any impurities.
NG REPLACE FUEL
OK
5 CHECK FUEL FOR AIR
NG BLEED FUEL OF AIR (See page 11 -- 25 )
OK
BACK TO CHAPTER INDEX
TO MODEL INDEX
To Alphabetical Index
To Sub Index TOYOTA COROLLA REPAIR MANUAL SUPP 1129E