Toyota Celica 2005 Repair Manual page 27

IN−26
4. DIAGNOSTIC TROUBLE CODE CHART
The inspection procedure is shown in the table below. This table permits efficient and accurate troubleshoot-
ing using the diagnostic trouble codes displayed in the diagnostic trouble code check. Proceed with trouble-
shooting in accordance with the inspection procedure given in the diagnostic chart corresponding to the
diagnostic trouble codes displayed. The engine diagnostic trouble code chart is shown below as an example.
D DTC No.
Indicates the diagnostic trouble code.
D Page or Instructions
Indicates the page where the inspection procedure
for each circuit is to be found, or gives instructions
for checking and repairs.
DTC CHART (SAE Controlled)
HINT:
Parameters listed in the chart may not be exactly the same as your reading due to the type of instrument or other
factors.
If a malfunction code is displayed during the DTC check mode, check the circuit for that code listed in the table
below. For details of each code, turn to the page referred to under the "See page" for the respective "DTC No."
in the DTC chart.
DTC No.
(See page)
P0100
Mass Air Flow Circuit Malfunction
(DI−24)
P0101 Mass Air Flow Circuit
(DI−28) Range/ Performance Problem
Intake Air Temp. Circuit
P0110
Malfunction
(DI−29)
P0115
Engine Coolant Temp.
(DI−33)
Circuit Malfunction
P0116 Engine Coolant Temp.
(DI−37) Circuit Range/ Performance Problem
Throttle/ Pedal Position Sensor/Switch
"A" Circuit Malfunction
Throttle/ Pedal Position Sensor/ Switch
"A" Circuit Range / Performance Prob-
lem
2005 CELICA (RM1131U)
INTRODUCTION
D Detection Item
Indicates the system of the problem or
contents of the problem.
Detection Item
− HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
Trouble Area
D Open or short in mass air flow meter circuit
D Mass air flow meter
D ECM
D Mass air flow meter
D Open or short in intake air temp. sensor
circuit
D Intake air temp. sensor
D ECM
D Open or short in engine coolant temp. sensor circuit
D Engine coolant temp. sensor
D ECM
D Engine coolant temp. sensor
D Cooling system
D Open or short in throttle position sensor circuit
D Throttle position sensor
D ECM
D Throttle position sensor
26
D Trouble Area
Indicates the suspect area of the
problem.
MIL* Memory