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
*: 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)
|
Toyota CH-R Owners Manual > For safe use: Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases
if inhaled.
WARNING Exhaust gases include harmful carbon monoxide (CO),
which is colorless and odorless. Observe the following precautions.Failure
to do so may cause exhaust gases enter the vehicle and may lead to an accide ...
Toyota CH-R Service Manual > Automatic Headlight Beam Level Control System: Dtc Check / Clear
DTC CHECK / CLEAR
CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes.
Body Electrical > HL AutoLeveling > Trouble Codes
(e) Check for DTCs.
CL ...