| : | Dec 17, 2007 |
| Mechanical |
|---|
|
: If the engine is run without the accessory drive belts connected to
eliminate driven components, diagnostic trouble codes, (DTCs) may be set
which must be cleared before the vehicle is returned to the owner. The
engine should not be run for more than 2-3 minutes with the belts
disconnected. Failure to follow this instruction may result in damage to
the vehicle. |
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Make sure that all DTCs are cleared following rectification. |
| Symptom | Possible cause | Action |
|---|---|---|
| Noise |
|
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 |
|
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 |
|---|---|---|---|
| P050600 | Idle Air Control System RPM Lower Than Expected |
|
Check the air intake system. Check the accessory drive belt and components. Refer to the relevant workshop manual section. |