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.
NE Signal Circuit
Detection Item
D
Open or short in NE circuit
D
IIA
D
Open or short in STA circuit
D
Engine ECU
DTC No.
(See page)
Trouble Area
*1
Check Engine
Warming Light
Nomal Mode/
Test Node
*Memory
(DI -- 12)
NE Signal Circuit
D
Open or short in IGF or IGT circuit from IIA to engine ECU
D
Igniter
D
Engine ECU
Ignition Signal Circuit
D
Open or short intake air temp. sensor circuit
D
Intake air temp. sensor
Water Temp. Sensor Circuit
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 in 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.
D
Open or short in NE circuit
D
IIA
D
Engine ECU
D
Open or short in water temp. sensor circuit
D
Water temp. sensor
D
Engine ECU
12
(DI -- 28)
13
(DI -- 31)
14
(DI -- 32)
22
ON / N.A
ON / N.A
ON / N.A
ON / N.A
--
INTRODUCTION
HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
IN--15
4. 1RZ -- E:
DI AG NO S T I C TRO UBLE CO DE 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.
CLICK HERE TO VIEW CHAPTER INDEX
Pages From Supplement
3RZ-F,3RZ-FE
