Toyota T100 1996, Service Manual, Page: 25 / 2062

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.
D Detection Item
Indicates the system of the problem or
contents of the problem.
D Trouble Area
Indicates the suspect area of the
problem.
Mass Air Flow Circuit Malfunction
Detection Item
D Open or short in mass air flow meter circuit
D Mass air flow meter
D ECM
DTC No.
(See page)
Trouble Area
MIL*
Memory
P0100
(DI
− 26)
P0101
(DI
− 31)
Mass Air Flow Circuit
Range/Performance Problem
D Mass air flow meter
P0115
(DI
− 37)
D Open or short in intake air temp. sensor circuit
D Intake air temp. sensor
D ECM
Intake Air Temp. Circuit Malfunction
P0110
(DI
− 32)
Engine Coolant Temp. Circuit
Range/Performance Problem
D
Open or short in engine coolant temp. sensor circuit
D
Engine coolant temp. sensor
D ECM
P0120
(DI
− 43)
Throttle/ Pedal Position Sensor/Switch
”A” Circuit Range/Performance
P0116
(DI
− 41)
Throttle/Pedal Position Sensor/Switch
”A” Circuit Malfunction
Insufficient Coolant Temp. for Closed
D
Engine coolant temp. sensor
D Cooling system
Engine Coolant Temp. Circuit
Malfunction
D Open or short in throttle position sensor circuit
D Throttle position sensor
D ECM
D Throttle position sensor
D Open or short in heated oxygen sensor circuit
D Heated oxygen sensor
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.
IN − 22
− INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
1996 TOYOTA T100 (RM449U)
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.