DESCRIPTION
The main body ECU (multiplex network body ECU) sends signals to the tire pressure warning ECU and receiver via a direct line.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
|---|---|---|---|---|
|
C2179/79 |
Tire Pressure Monitor ECU Communication Stop |
Communication between the main body ECU (multiplex network body ECU) and tire pressure warning ECU and receiver is interrupted for 10 seconds or more. |
|
- |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
after registration
of the transmitter IDs into the tire pressure warning ECU and receiver after
the ECU and/or one of the valve and transmitters has been replaced. *: w/ Smart Key System
Click here
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (TIRE PRESSURE WARNING ECU AND RECEIVER - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Turn the ignition switch off.
(b) Disconnect the M23 tire pressure warning ECU and receiver connector.
(c) Disconnect the F15 main body ECU (multiplex network body ECU) connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M23-5 (PRG) - F15-5 (PRG) |
Always |
Below 1 Ω |
|
M23-5 (PRG) or F15-5 (PRG) - Body ground |
Always |
10 kΩ or higher |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
2. |
REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER |
(a) Replace the tire pressure warning ECU and receiver.
Click here
|
|
3. |
CHECK DTC OUTPUT |
(a) Clear the DTCs.
Click here
(b) Turn the ignition switch off.
(c) Turn the ignition switch to ON.
(d) Check for DTCs.
Click here
OK:
DTC C2179/79 is not output.
| OK | |
END |
| NG | |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
Initialization not Completed (C2177/77)
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DESCRIPTION
When the front doors are closed, each power window regulator motor assembly can
be operated for approximately 45 seconds after the ignition switch is turned from
ON to off by receiving operation permission signals from the main body ECU (multiplex
network body ECU). However, when ...
Toyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): Radio Broadcast cannot be Received or Poor Reception
WIRING DIAGRAM
for TMMT Made
for TMC Made
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced during vehicle inspection or
maintenance, performing initialization, registration or calibration may
be needed. Refer to Precaution for Audio and Visual System. ...