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

4-Pin Connector -T4As- 

Fig 1: Reducing Agent Heater Control Module Connector End View (J891) - 4-Pin Connector (T4AS)
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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