DTC C2121/21, C2122/22, C2123/23, C2124/24, C2125/25, C2131/31, C2132/32, C2133/33, C2134/34, C2135/35, C2181/81, C2182/82, C2183/83, C2184/84, C2185/85; No Signal from Transmitter ID1 in Main Mode; No Signal from Transmitter ID2 in Main Mode; No Signal from Transmitter ID3 in Main Mode; No Signal from Transmitter ID4 in Main Mode; No Signal from Transmitter ID5 in Main Mode; No Signal from Transmitter ID1 in 2nd Mode; No Signal from Transmitter ID2 in 2nd Mode; No Signal from Transmitter ID3 in 2nd Mode; No Signal from Transmitter ID4 in 2nd Mode; No Signal from Transmitter ID5 in 2nd Mode; Transmitter ID1 not Received (Test Mode DTC); Transmitter ID2 not Received (Test Mode DTC); Transmitter ID3 not Received (Test Mode DTC); Transmitter ID4 not Received (Test Mode DTC); Transmitter ID5 Not Received (Test Mode DTC): Description
The tire pressure monitor valve sub-assembly constantly sends radio waves to the tire pressure monitor ECU. If the battery for the tire pressure monitor valve sub-assembly is depleted, or if the tire pressure antenna is defective or comes off, a DTC will be output. DTCs C2121/21 to C2125/25 and C2131/31 to C2135/35 can only be deleted by the tester. DTCs C2181/81 to C2185/85 can be deleted when the transmitter sends a forced transmission signal or the test mode ends. DTCs C2181/81 to C2185/85 are output only in the test mode.
DTC TROUBLE DETECTION REFERENCE
| DTC No. | DTC Detecting Condition | Trouble Area |
|---|---|---|
| C2121/21 C2122/22 C2123/23 C2124/24 C2125/25 C2131/31 C2132/32 C2133/33 C2134/34 C2135/35 |
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 received for 12 minutes or more. |
|
| C2181/81 C2182/82 C2183/83 C2184/84 C2185/85 |
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.