Operation CHARM: Car repair manuals for everyone.
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

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Non-Trouble Code Procedures

ON-VEHICLE SERVICE

PRINTED-HEATER LINES CHECK




1. Run the engine at 2,000 r/min Check the heater element with the battery at full
2. Turn "ON" the rear window defogger switch Measure the heater element voltage with an ohmmeter at the rear window glass center A Condition is good if it indicates about 6 V
3. If 12 V is indicated at A, there is a break in the negative terminals from A Move the test probe slowly to the negative terminal to detect where voltage changes suddenly (0V)




4. If 0 V is indicated at A, there is a break in the positive terminals from A Defect where the voltage changes suddenly (12 V) in the same method described