Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Battery Temperature Sensor: Description and Operation

The PCM uses the temperature of the battery area to control the charge rate. The signal is used to regulate the system voltage. The system Voltage is higher at cold temperatures and is gradually reduced as temperature is increased.