One or more of the following conditions: Rough idle condition
Scion technical service bulletin S-SB-0008-16 for 2012-2013 Scion Iq.
- Bulletin number
- S-SB-0008-16
- Component
- Engine and engine cooling
- Summary
- TSB: Some 2012 ? 2013 model year iQ vehicles may exhibit one or more of the following conditions: Rough idle condition. Idle speed momentarily drops at idle. MIL ?ON? with one or more of the following DTCs: P1603, P1604 and/or P1605. These may be caused by excessive carbon build-up on piston head. Follow the Repair Procedure in this Service Bulletin to address this condition
Owners of these vehicles have filed 9 complaints in the engine category.
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