Operation CHARM: Car repair manuals for everyone.
Home >> Mercury >> 1992 >> Topaz L4-140 2.3L HSC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Pinpoint Tests >> B - Vehicle Battery >> B - Testing Notes
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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

B - Testing Notes

NOTE: You should enter this Pinpoint Test only when directed here from Pinpoint Test C, J, PA, PB, or PC.


REMEMBER

To prevent the replacement of good components, be aware that the following non-EEC areas may be at fault.


- Ignition Switch

- Battery Cables

- Alternator

- Voltage Regulator

- Ground Straps

This Pinpoint Test is intended to diagnose only the following:

- Processor

- Harness circuits: SIG RTN, PWR GND, VPWR, KAPWR, IGNITION SWITCH

- Battery Voltage

- Power Relay
pro multis · About Operation CHARM