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 |
REPLACE COMBINATION METER ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Disassembly
DISASSEMBLY
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE
1. REMOVE FRONT DISC BRAKE SET RING
(a) Using a screwdriver, remove the 4 fron ...
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 Area
U0100
IG voltage is 9.5 V or ...