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)

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Monitor DTC Status

B1237 Ambient Temperature Sensor Short (Low)

Scantool Diagnostics

Monitor Scantool Data

1. Connect scantool with diagnostic connector.
2. Warm up the engine to normal engine temperature after engine starts.
3. Select and monitor "Ambient Air Temperature sensor" parameter.

Fig.1) Parameter of "Ambient Sensor" will be fixed at 20°C (68°F), if there is any fault in Ambient Sensor.
4. Is the ambient sensor normal?