Toyota Sienna Service Manual: DRL Relay Circuit
DESCRIPTION
The Multiplex network body ECU controls the DRL No.2 relay
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
- Connect the intelligent tester to DLC3.
- Turn the ignition switch ON and push the intelligent tester main switch ON.
- Select the item below in the ACTIVE TEST and then check that the relay operates.
BODY NO.1:
2 INSPECT DRL NO.2 RELAY
- Inspect DRL No.2 Relay continuity.
Resistance
3 CHECK HARNESS AND CONNECTOR (POWER SOURCE)
- Disconnect the connector from the instrument panel junction block assembly.
- Measure the voltage according to the value(s) in the table below.
Voltage
4 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
- Reconnect the connector to the instrument panel junction block assembly.
- Measure the voltage according to the value(s) in the table below.
Voltage
5 INSPECT RELAY (DRL NO.3, DRL NO.4)
- Inspect DRL NO.4 Relay continuity.
Resistance
- Inspect DRL NO.3 Relay continuity.
Resistance
6 INSPECT DAYTIME RUNNING LIGHT RESISTER
- Measure the resistance according to the value(s) in the table below.
Resistance
REPAIR OR REPLACE HARNESS OR CONNECTOR
Headlight Relay Circuit
DESCRIPTION
The Multiplex network body ECU controls HEAD relay when signal is received
from headlight dimmer
switch assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST BY IN ...
Front Fog Light Circuit
DESCRIPTION
The Multiplex network body ECU controls FOG relay when signal is received
from headlight dimmer
switch assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST BY INT ...
Other materials:
Freeze frame data
1. DESCRIPTION
(a) The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC
is stored. When troubleshooting, freeze frame data
can be helpful in determining whether the vehicle
was running or stopped, whether the engine was
warmed up or not, whether the a ...
Problem symptoms table
When a "Normal" code is output during a DTC check but
the problem still occurs, use the Problem Symptoms
Table. The suspected areas (circuits or parts) for each
problem symptoms are in the table. The suspected areas
are listed in order of probability. A description of each of
the char ...
Installation
1. INSTALL SPARK PLUG
(a) Install the 6 spark plugs.
Torque: 18 N*m (183 kgf*cm, 13 ft.*lbf)
2. INSTALL IGNITION COIL ASSEMBLY
(a) Install the 6 ignition coils with the 6 bolts.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
(b) Connect the 6 ignition coil connectors.
3. INSTALL NO. 1 SUR ...
