A customer brought in their 07 Camry XLE with a flashing low tire light. I retrieved two codes, one for sensor 1 and one for sensor 2. Tire pressures normal.
Codes are
DTC C2121/21 No Signal from Transmitter ID1 in Main Mode
DTC C2122/22 No Signal from Transmitter ID2 in Main Mode
The other things I noticed were that the two bad sensors were showing a temp of -40F while the two good sensors were within 5 degrees of actual ambient temp. Another fault was that the battery in #4 was low. I ordered 2 new sensors from Toyota and after writing down their code, I swapped them out. I had already written down the codes for the other 2 sensors. Going into the data, now sensor #4 is reading -40F too and the battery says OVER. Hmmm The only good one is on the left front. I cannot believe that I had two bad sensors this morning and another failed this afternoon. I've been wrenching long enough to know that these things are rare. The customer made the appointment yesterday and dropped off the car last night. She called right when the light came on and only drove it about 30 miles from then to when she dropped it off.
Before I left, I ordered two more sensors. Hopefully a dealer tech or someone in the know can explain this.
BTW, the tires look relatively new, but we did not put them on. The two sensors I removed looked fine.
Codes are
DTC C2121/21 No Signal from Transmitter ID1 in Main Mode
DTC C2122/22 No Signal from Transmitter ID2 in Main Mode
The other things I noticed were that the two bad sensors were showing a temp of -40F while the two good sensors were within 5 degrees of actual ambient temp. Another fault was that the battery in #4 was low. I ordered 2 new sensors from Toyota and after writing down their code, I swapped them out. I had already written down the codes for the other 2 sensors. Going into the data, now sensor #4 is reading -40F too and the battery says OVER. Hmmm The only good one is on the left front. I cannot believe that I had two bad sensors this morning and another failed this afternoon. I've been wrenching long enough to know that these things are rare. The customer made the appointment yesterday and dropped off the car last night. She called right when the light came on and only drove it about 30 miles from then to when she dropped it off.
Before I left, I ordered two more sensors. Hopefully a dealer tech or someone in the know can explain this.
BTW, the tires look relatively new, but we did not put them on. The two sensors I removed looked fine.
