Test A: No Communication With the TPMS Module/Unable to Enter Self-Test

Pinpoint Test A: No Communication With The TPM's Module/Unable To Enter Self-Test

Normal Operation
The tire pressure monitoring system (TPM's) module is integral to the vehicle security module (VSM). The VSM module requires an operating voltage in a range between 10 and 17 volts. Fused battery voltage is supplied through central junction box (CJB) fuse 5 (7.5A) and along circuit 729 (RD/WH), ground is provided through circuit 57 (BK)

Possible Causes
^ Fuse
^ Circuit open
^ VSM module
^ Diagnostic tool

A1:

A1-A2:

CAUTION: The Flex Probe Kit must be used for all test connections. Use of standard multimeter probes may damage wiring terminals.