Checking The Charge Lamp

Checking the charge lamp

Checking the charge lamp




- Ignition off.
- Ignition on.
- Start the engine.
- Rev the engine once.
Check that charging lamp lights when the ignition is switched on and that the lamp goes out when the generator starts charging.





Is the charge lamp OK?

Yes - No Fault Found

No - Checking the (D+) supply from the generator (GEN)

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Checking the (D+) supply from the generator (GEN)








- Ignition off.
- Disconnect the connector (1-pin receptacle terminal) from the generator (GEN) terminal pin D+.
- Ignition on.
Connect a voltmeter between ground and the generator (GEN) terminal pin D+.









The voltmeter should read between 0.7 V and approximately 2 V.

OK - Checking the (D+) supply from the generator (GEN), continued

Not OK - Replacing the component

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Checking the (D+) supply from the generator (GEN), continued








- Disconnect the connector from the generator (GEN) terminal pin D+.
- Start the engine.
Connect a voltmeter between ground and the generator (GEN) terminal pin D+.









The voltmeter should read approximately 14.5 V.

OK - Checking the charge, lamp wiring circuit

Not OK - Replacing the component

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Replacing the component
The fault is in the generator.
- Replace the generator (GEN) generator (GEN) .

Continue - Verification

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Checking the charge, lamp wiring circuit
The previous tests have shown that the fault is in the wiring circuit for the combined instrument panel or the lamp. It is also possible that the combined instrument panel is faulty.
Check the wiring circuit for the charge lamp.
Check the circuit between the generator (GEN) and the combined instrument panel for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault , a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault , and a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Continue - Verification

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Verification

Hint: After carrying out the repair, check that the fault has been remedied as follows:








- Ignition off.
- Reinstall the connectors, components etc.
- Ignition on.
- Start the engine.
- Rev the engine once.
Check that charging lamp lights when the ignition is switched on and that the lamp goes out when the generator starts charging.





Is the charge lamp OK?

Yes - FAULT FOUND

No - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should be diagnosed and remedied. Since this is not the case the fault-tracing process has failed.
Complete the fault-tracing for those fault or try again.

Do you want to terminate fault-tracing at this time?

Yes - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking the charge lamp

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