Receiver Error (C2176/76)
The signals are transmitted to the tire pressure warning antenna and receiver on the body as radio waves and then sent to the tire pressure warning ECU.
DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
C2176/76 |
A malfunction in the tire pressure warning ECU internal circuit. |
|
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the tire pressure warning ECU, read the IDs stored in the old ECU using the Techstream and write them down before removal.
- It is necessary to perform registration of the transmitter IDs into the tire pressure warning ECU after the ECU and/or the tire pressure warning valve and transmitter has been replaced (See page
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).
CHECK HARNESS AND CONNECTOR (ECU - RECEIVER)
(a) Disconnect the F7 ECU connector.
(b) Disconnect the V3 receiver connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
|---|---|---|
F7-12 (RDA) - V3-1 (RDA) |
Always |
Below 1 Ω |
F7-11 (GND2) - V3-4 (GND) |
Always |
Below 1 Ω |
F7-6 (RF5V) - V3-5 (+5V) |
Always |
Below 1 Ω |
F7-12 (RDA) or V3-1 (RDA) - Body ground |
Always |
10 kΩ or higher |
F7-11 (GND2) or V3-4 (GND) - Body ground |
Always |
10 kΩ or higher |
F7-6 (RF5V) or V3-5 (+5V) - Body ground |
Always |
10 kΩ or higher |
| NG | .gif) | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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CHECK TIRE PRESSURE WARNING ECU
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
 |
| OK | | REPLACE TIRE PRESSURE WARNING ANTENNA AND RECEIVER |
| NG | | REPLACE TIRE PRESSURE WARNING ECU |
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.