Symptom Tree t013
| Cause | Correction |
|---|
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Battery condition poor |
Load-test the battery. If the battery charge is low, charge the battery. If battery fails the second load test, replace the battery. Refer to the OEM service manual. |
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Battery cables or connections are loose, broken, or corroded (excessive resistance) |
Check the battery cables and connections. Refer to Procedure 013-009. |
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Vehicle gauge is malfunctioning |
Check the vehicle gauge. Refer to the OEM service manual. |
|
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Alternator belt is loose or missing |
Check the alternator belt tension. Check pulleys in belt wrap, and repair, if necessary. Replace belt or belt tensioner, or both. Refer to Procedure 008-087. |
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|
Alternator connection to ground is poor |
Inspect the alternator mounting hardware for a proper electrical connection to the battery. Remove any paint and debris from the ground connection. Check mounting bracket bolts for proper torque. Refer to Procedure 013-001. |
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Voltage regulator is malfunctioning |
Check the voltage regulator. Replace the voltage regulator, if necessary. Refer to the OEM service manual. |
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|
Alternator is malfunctioning |
Test the alternator output. Refer to Procedure 013-001. |
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|
Alternator pulley is loose on the shaft |
Tighten the pulley. Refer to the OEM service manual. |
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Alternator is overloaded, or alternator capacity is below specification |
Install an alternator with a higher capacity. Refer to Procedure 013-001 and the OEM service manual. |
