DESCRIPTION
Connecting terminals TC and CG of the DLC3 causes the system to enter self-diagnostic mode. If a malfunction is present, the MIL will blink.
HINT:
When a particular warning light remains blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in the relevant ECU is suspected.
WIRING DIAGRAM
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (DLC3 - ECM) |
(a) Disconnect the ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
For 1AR-FE
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D1-13 (TC) - A49-7 (TC) |
Always |
Below 1 Ω |
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D1-13 (TC) - A41-16 (TC) |
Always |
Below 1 Ω |
*1 |
DLC3 |
*2 |
Front view of wire harness connector (to ECM) |
*3 |
for 1AR-FE |
*4 |
for 2GR-FE |
(c) Reconnect the ECM connector.
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - ECM) |
|
2. |
CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D1-4 (CG) - Body ground |
Always |
Below 1 Ω |
*1 |
DLC3 |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - BODY GROUND) |
|
3. |
CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D1-13 (TC) - Body ground |
Always |
10 kΩ or higher |
*1 |
DLC3 |
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU |
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable
is reconnected (See page ).
2. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
3. REMOVE COOL AIR ...
Electrical Key Oscillator(for Front Floor)
Components
COMPONENTS
ILLUSTRATION
Installation
INSTALLATION
PROCEDURE
1. INSTALL ELECTRICAL KEY OSCILLATOR
(a) Engage the clamp and install the electrical key oscillator.
NOTICE:
Be careful when installing the electrical key osci ...
Rear Right Sensor Malfunction (C1AE9)
DESCRIPTION
The No. 1 ultrasonic sensor (rear right sensor) is installed on the rear bumper.
The ECU detects obstacles based on signals received from the No. 1 ultrasonic sensor
(rear right sensor). If the No. 1 ultrasonic sensor (rear right sensor) has a ...