Diagnostic Aids

WARNING: This page is about a different car, the 2003 Suzuki Vitara. However, it is still accessible from the selected car via links, so may be relevant.

Repair low voltage, driveability, or other electrical complaints first, prior to performing DTC C1255 or C1256 trouble flow.
Make sure the integrity of the connection between EBCM and BPMV is secure, tight and free of corrosion, leaks and/or damage.