: | Dec 17, 2007 |
Mechanical |
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Make sure that all DTCs are cleared following rectification. |
Symptom | Possible cause | Action |
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Noise |
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Check the belt condition (see visual inspection). Check the tensioner function. Check the pulley alignment. Check the driven components for excessive resistance to rotation. Rectify as necessary. |
Drive belt does not hold tension |
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Check the belt condition (see visual inspection). Check the tensioner function. Rectify as necessary. |
Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system). |
For a full list of ECM DTCs, refer to workshop manual section 303-14 - Electronic Engine Controls. |
DTC | Description | Possible source | Action |
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P050600 | Idle Air Control System RPM Lower Than Expected |
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Check the air intake system. Check the accessory drive belt and components. Refer to the relevant workshop manual section. |