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

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Test H

PINPOINT TEST H: THE REMOTE TRANSMITTER HAS POOR RANGE PERFORMANCE


Test H1-H4:






Test H5:






Normal Operation
Remote locking and unlocking of the doors is accomplished by the smart junction box (SJB) receiving a command message from the remote transmitter through the SJB external antenna, circuit 2906 (YE/RD) and circuit 2907 (WH/LB). The SJB processes the command and sends a signal directly to the door lock actuators. The remote transmitter has a minimum operating range of 10 m (33 feet).

All remote transmitters need to be present to begin diagnosis of the remote keyless entry (RKE) system.

Aftermarket or dealer-installed system may adversely affect the RKE system operation. These systems should be disconnected before diagnosing any RKE concerns.

Possible Causes
- remote transmitter
- SJB external antenna
- aftermarket systems
- high power devices
- TV/radio transmission towers
- SJB