Golf GLS L4-2.0L (AZG) (2001)
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Check if DTCs from Table are stored.
If catalytic converter is NOT rattling and DTC P0420 and any DTC(s) from table are stored:
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Proceed to "DTCs in table are stored" (see below).
If catalytic converter is rattling and any DTC(s) from table stored:
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Proceed to "DTCs in table are stored" (see below).
If catalytic converter is NOT rattling and P0420 is the only DTC stored:
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Proceed to "Replace catalytic converter" (see below).
If catalytic converter is rattling and P0420 is the only DTC stored.
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Proceed to "Replace catalytic converter" (see below).
DTCs in table are stored:
The reason for DTC(s) from Table MUST be corrected (possibly at customer expense) prior to potential catalytic converter replacement.
With other DTC(s) corrected:
If catalytic converter is rattling:
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Proceed to "Replace catalytic converter" (see below).
If catalytic converter is NOT rattling:
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Erase all DTC(s) and set readiness code.
If complete readiness code cannot be set due to the catalyst diagnosis monitor in display group 46 not resetting:
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Proceed to "Replace catalytic converter" (see below).
If complete readiness code can be fully set:
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Return vehicle to the customer without replacing catalytic converter.
If vehicle was returned to the Customer (without converter replacement) and Customer returns with DTC P0420 stored again:
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Proceed to "Replace catalytic converter" (see below).
Replace catalytic converter
Erase all DTC(s) and set readiness code.
Warranty
Catalytic Converter Limited Extended Warranty:
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For Details, U.S. dealers see Warranty Bulletin, VWP-10-09.
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For Details, Canadian dealers refer to the Canadian Policies & Procedures sec: 1.3.12.8. & Warranty Bulletin VWP-10-11.