Toyota 4Runner: Entire Combination Meter does not Operate
DESCRIPTION
This circuit is the power source circuit for the meter. This circuit provides two types of power sources; one is a constant power source mainly used as a backup power source, and the other is an IG power source mainly used for signal transmission. The constant power source is mainly used as a backup power source for the meter CPU, however, it is also used for CAN communication. If a voltage of 12 V is not applied to terminal IG+ when the ignition switch is turned to ON, the indicators will not operate.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR |
|
(a) Disconnect the F14 meter connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F14-20 (E1) - Body ground |
Always |
Below 1 Ω |
|
F14-13 (MGND) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F14-17 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
|
F14-15 (B) - Body ground |
Always |
11 to 14 V |
|
*a |
Front view of wire harness connector (to Combination Meter Assembly) |
| OK | .gif) |
REPLACE COMBINATION METER ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Lost Communication with ECM / PCM "A" (U0100,U0129,U0131,U0151)
DESCRIPTION
The combination meter assembly communicates with the ECM via the CAN communication
system (CAN No. 1 Bus).
DTC Code.
DTC Detection Condition
Trouble Ar ...
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DESCRIPTION
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via the CAN communication line. The wheel speed sensors output voltages that vary
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Removal
REMOVAL
CAUTION / NOTICE / HINT
CAUTION:
Wear protective gloves. Sharp areas on the parts may injure your hands.
PROCEDURE
1. REMOVE REAR SEAT CUSHION HINGE COVER
(a) Using a moulding remover, detach the 3 claws and remove the cover.
2. REMOVE REAR SE ...
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Door Key Cylinder
DESCRIPTION
The main body ECU (multiplex network body ECU) receives switch signals from the
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lock. The main body ECU (multiplex network body ECU) activates the door lock mot ...
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