Problem: The customer brought the car to the
shop because, after starting the car, the TPMS light would flash
for a minute then stay on continually. This would happen every
drive cycle. The vehicle had stock steel wheels and hubcaps.
Details: The tech scanned for codes and
found a diagnostic trouble code (DTC), C1709 – Data from
transmitter not being received (Front right). He checked the
tire pressures and verified that they were all correct and
equal (33psi). All tires were inspected for correct size
(185/65R15) and signs of abnormal wear. The tires had 6/32″
tread depth remaining and no other problems were found during
NOTE: The spare tire does not have a TPMS
On recommendation from the Tech-Assist consultant, he checked
TPMS remaining battery life and found that all four sensors
showed under 15-months remaining (new sensors typically report
NOTE: Weak TPMS sensor battery life can cause
this problem to happen intermittently.
Confirmed Repair: Because there was some
battery life remaining, the tech decided to re-initialized the
sensors. The light remained off but the car came back a week
later with the same DTC. This time, he replaced all four TPMS
sensors, registered the sensors and cleared the DTC. After
replacing all the TPMS sensors the problem was fixed.