DTC C2121/21 No Signal from Transmitter ID1 in Main Mode; DTC C2122/22 No Signal from Transmitter ID2 in Main Mode; DTC C2123/23 No Signal from Transmitter ID3 in Main Mode; DTC C2124/24 No Signal from Transmitter ID4 in Main Mode; DTC C2131/31 No Signal from Transmitter ID1 in 2nd Mode; DTC C2132/32 No Signal from Transmitter ID2 in 2nd Mode; DTC C2133/33 No Signal from Transmitter ID3 in 2nd Mode; DTC C2134/34 No Signal from Transmitter ID4 in 2nd Mode; DTC C2181/81 Transmitter ID1 not Received (Test Mode DTC); DTC C2182/82 Transmitter ID2 not Received (Test Mode DTC); DTC C2183/83 Transmitter ID3 not Received (Test Mode DTC); DTC C2184/84 Transmitter ID4 not Received (Test Mode DTC): Description
The tire pressure monitor valve sub-assembly constantly sends radio waves to the tire pressure monitor receiver assembly. If the battery for the tire pressure monitor valve sub-assembly is depleted, or if the tire pressure monitor receiver assembly is defective or comes off, the DTC will be output. DTCs C2121/21 to C2124/24 and C2131/31 to C2134/34 can only be deleted by the tester. DTCs C2181/81 to C2184/84 can be deleted when the transmitter sends a force transmission signal or the test mode ends. DTCs C2181/81 to C2184/84 are output only in the test mode.
DTC DETECTION CONDITION
| DTC No. | DTC Detecting Condition | Trouble Area |
|---|---|---|
| C2121/21 C2122/22 C2123/23 C2124/24 C2131/31 C2132/32 C2133/33 C2134/34 |
These DTCs are detected when no signals are received for 51 minutes or more, after a vehicle speed of 5 mph (8 km/h) or more is detected and no signals are still received for 12 minutes or more. |
|
| C2181/81 C2182/82 C2183/83 C2184/84 |
Malfunction in the transmitting/receiving circuit |
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HINT:
It is necessary to perform the procedure to identify the tire pressure monitor valve sub-assembly that is malfunctioning because it cannot be identified by the output DTC.