DESCRIPTION
This circuit is the power source circuit for the combination meter assembly. This circuit provides two types of power sources; one is a constant power source, and the other is an IG power source.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses of circuits related to this system before performing the following procedure.
PROCEDURE
1. | READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Wiper / Data List.
(e) Read the Data List according to the display on the Techstream.
Body Electrical > Wiper > Data List Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
---|---|---|---|---|
Status of Power Supply Voltage | Front wiper motor and link assembly input voltage | Normal or Abnormal | Normal: 6.6 to 17.9 V Abnormal: Below 6.5 V or 18.0 V Higher | - |
Tester Display |
---|
Status of Power Supply Voltage |
OK:
The Techstream display is normal.
OK | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. | CHECK HARNESS AND CONNECTOR (FRONT WIPER MOTOR AND LINK ASSEMBLY - BODY GROUND) |
(a) Disconnect the i1 front wiper motor and link assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
i1-4 (+S) - Body ground | Always | Below 1 Ω |
NG | GO TO STEP 9 |
|
3. | CHECK HARNESS AND CONNECTOR (FRONT WIPER MOTOR AND LINK ASSEMBLY - POWER SOURCE) |
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
i1-3 (L) - Body ground | Engine switch off | Below 1 V |
Engine switch on (IG) | 11 to 14 V |
OK | REPLACE FRONT WIPER MOTOR AND LINK ASSEMBLY |
|
4. | CHECK WIPER MOTOR WIRE |
(a) Remove the wiper motor wire.
Click here
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | REPLACE WIPER MOTOR WIRE |
|
5. | INSPECT WIPER RELAY |
(a) Remove the WIPER relay.
(b) Inspect the WIPER relay.
Click here
NG | REPLACE WIPER RELAY |
|
6. | CHECK HARNESS AND CONNECTOR (FRONT WIPER MOTOR AND LINK ASSEMBLY - POWER SOURCE, BODY GROUND) |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
2 - Body ground | Always | Below 1 Ω |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
7. | CHECK HARNESS AND CONNECTOR (WIPER RELAY - FRONT WIPER MOTOR AND LINK ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
3 - i1-3 (L) | Always | Below 1 Ω |
3 or i1-3 (L) - Body ground | Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
8. | CHECK HARNESS AND CONNECTOR (WIPER RELAY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Disconnect the J8 main body ECU (multiplex network body ECU) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
1 - J8-9 (PWS) | Always | Below 1 Ω |
1 or J8-9 (PWS) - Body ground | Always | 10 kΩ or higher |
OK | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
9. | CHECK WIPER MOTOR WIRE |
(a) Remove the wiper motor wire.
Click here
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
OK | REPAIR OR REPLACE HARNESS OR CONNECTOR |
NG | REPLACE WIPER MOTOR WIRE |
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