DESCRIPTION
When the ignition switch is turned to ON, voltage from the ECM's MREL terminal is applied to the EFI MAIN relay. This causes the contacts of the EFI MAIN relay to close, which supplies power to terminal +B of the TCM.
WIRING DIAGRAM
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (TCM - BODY GROUND) |
(a) Turn the ignition switch off. |
|
(b) Disconnect the TCM connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B40-8 (E1) - Body ground |
Always |
Below 1 Ω |
*1 |
Front view of wire harness connector (to TCM) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
INSPECT ECU TERMINAL VOLTAGE (+B TERMINAL) |
(a) Disconnect the TCM connectors. |
|
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
B40-18 (+B) - Body ground |
Ignition switch ON |
11 to 14 V |
*1 |
Front view of wire harness connector (to TCM) |
OK |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
3. |
CHECK HARNESS AND CONNECTOR (TCM - ENGINE ROOM JUNCTION BLOCK ASSEMBLY) |
(a) Turn the ignition switch off.
(b) Disconnect the TCM connector.
(c) Remove the engine room junction block assembly from the engine room relay block.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B40-18 (+B) - 1F-18 (+B) |
Always |
Below 1 Ω |
Standard Resistance (Check for Short):
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B40-18 (+B) or 1F-18 (+B) - Body ground |
Always |
10 kΩ or higher |
*1 |
Engine Room Junction Block Assembly |
*2 |
Front view of wire harness connector (to Engine Room Junction Block Assembly) |
*3 |
Front view of wire harness connector (to TCM) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
INSPECT ENGINE ROOM JUNCTION BLOCK ASSEMBLY |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
OK |
GO TO ECM POWER SOURCE CIRCUIT (ENGINE CONTROL SYSTEM / SFI SYSTEM) |
NG |
REPLACE ENGINE ROOM JUNCTION BLOCK ASSEMBLY |
Precaution
PRECAUTION
1. NOTICE FOR INITIALIZATION
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize
the following system after the cable is reconnected.
System Name
See Procedure
Back Doo ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL ROOF DRIP SIDE FINISH MOULDING CLIP (w/o Sliding Roof)
NOTICE:
If reusing the clips, do not remove the double-sided tape remaining
on the clips and where the clips will be installed on the body.
If installi ...
Engine Hood Courtesy Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT SECURITY COURTESY SWITCH (HOOD LOCK ASSEMBLY)
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
...