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Reducing Agent Heater Control Module -J891-: 4-pin

4-pin connector -T4qc- 

Fig 1: Reducing Agent Heater Control Module Connector End View (J891) - 4-Pin Connector (T4QC)
G12755007Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Cavity Function
1 SCR heater diagnostics 2
2 SCR heater control 2
3 SCR heater diagnostics 1
4 SCR heater control 1
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