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

Test H: The Remote Keyless Entry (RKE) Transmitter Has Poor Range Performance

PINPOINT TEST H: THE REMOTE KEYLESS ENTRY (RKE) TRANSMITTER HAS POOR RANGE PERFORMANCE

Normal Operation
Remote locking and unlocking of the doors, and activating the panic alarm is accomplished by the vehicle security module (VSM) receiving a command message from the RKE transmitter through the tire pressure monitoring system/remote keyless entry (TPMS/RKE) internal antenna. The VSM processes the command and provides the appropriate output. The RKE transmitter has a maximum operating range of 10 m (33 ft).

This pinpoint test is intended to diagnose the following:
- Aftermarket systems
- High power devices
- RKE transmitter
- RKE transmitter battery
- TV/radio transmission towers
- VSM


H1-H3:






H4-H5: