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 spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Ambient Temperature Sensor

Ambient Temperature Sensor
The thermometer function is supported by the ambient temperature sensor a wiring circuit the Body Control Module (BCM) the Programmable Communications Interface (PCI) data bus and a portion of the Electronic Vehicle Information Center (EVIC) module. If any portion of the ambient temperature sensor circuit fails the EVIC module will self-diagnose the circuit. A "Short Circuit" message will appear in the display in place of the temperature when the sensor is exposed to temperatures above 55° C (131° F) or if the sensor circuit is shorted. An "Open Circuit" message will appear in the display in the place of the temperature when the sensor is exposed to temperatures below - 40° C (- 40° F) or if the sensor circuit is open.