Reductant Injection Valve Circuit Low Bank 1 Unit 2

Where it lives

For P2054, the valve sits on the circuit this code reports. The description of P2054 puts it on bank 1.

Check these first

• A short to ground on the bank 1 unit 2 reductant injection valve control wire
• A failed bank 1 unit 2 reductant injection valve coil
• Low voltage at the valve from a weak supply
• A clogged DEF filter or line

What to do next

1. Read the bank 1 unit 2 reductant injection valve circuit on a scan tool
2. Test the valve control wire for a short to ground
3. Check the valve coil resistance against spec
4. Inspect the DEF filter and lines for a clog
5. Replace the bank 1 unit 2 reductant injection valve if the circuit tests good
6. Clear the code and retest

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