LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Honda >> 1995 >> Prelude L4-2.2L SOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Body Control Module >> Diagrams >> Diagnostic Aids >> Damage Precautions >> Proper Tools and Testing Procedures
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Proper Tools and Testing Procedures


DIGITAL VOLT/OHM METER
Use a digital volt/ohm meter (DVOM) with a minimum 10 mega-ohms internal impedance when testing an ECU or related components, unless use of an analog meter is specified by a testing procedure. Analog meters have low internal impedance and cause circuit "loading" in low voltage circuits, resulting in inaccurate measurements and possible damage to components. Use of a DVOM is necessary to obtain accurate measurements and avoid damaging low voltage ECU circuits and components.


TESTING PROCEDURES
Always follow recommended testing procedures. Never ground or apply voltage to a circuit unless specified by a testing procedure. ECU's provide a regulated constant low voltage source to some circuits, which may require a minimum resistance (impedance) to operate. Directly grounding or applying battery power to these circuits could damage the ECU and cause a system failure.


scientia non olet · About LEMON Manuals