Pinpoint Test B

B: THE ENGINE CRANKS SLOWLY
CHECK FOR VOLTAGE DROP
1. Measure the voltage between the starter motor permanent voltage supply terminal and the positive battery terminal with the ignition key in the START position.
^ Is the voltage greater than 10 volts?
Yes Refer to CHECK FOR GROUND CONNECTION
No CLEAN and TIGHTEN all positive battery cable connections. TEST the system for normal operation. If the concern persists, INSTALL a new positive battery cable.

CHECK FOR GROUND CONNECTION
1. Measure the voltage between the starter motor case and battery negative terminal with the ignition key in the START position.
^ Is the voltage less than 0.5 volts?
Yes DIAGNOSE the battery and charging system.
No CLEAN and TIGHTEN all negative battery cable connections, starter motor mounting and body to engine ground strap. TEST the system for normal operation. If the concern persists, INSTALL a new negative battery cable.