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 |
CD cannot be Inserted or is Ejected Right After Insertion
PROCEDURE
1.
CHECK IF A PROPER CD IS INSERTED
(a) Make sure that the CD is an audio CD or a CD with an MP3, WMA or AAC files,
and that it is not deformed, flawed, stained, deteriorated or otherwise defective.
OK:
Normal C ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE COOLER DRYER
(a) Using a 14 mm straight hexagon wrench, remove the cap from the modulator.
Text in Illustration
*1
14 mm Straight Hexagon Wrench
*2 ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Air conditioning system data and the Diagnostic Trouble Codes (DTCs) can
be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system
seems to be malfunctioning, use the Techstream to check for malf ...