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This instruction show you guide on how to solve ISUZU N-series 4JJ1 3.0L 2018 truck DTC P06A3 trouble solution.

The 5 volts reference circuit 4 is internal circuit of ECM.

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CONDITION FOR RUNNING THE DTC:

The ignition switch is ON.

CONDITION FOR SETTING DTC:

Either Of the Following Conditions Is Met:

1. The ECM detects that the 5 volts reference circuit 4 voltage is less than 4.8 volts.

2.The ECM detects that the 5 volts reference circuit 4 voltage is more than 5.2 volts.

ACTION TAKEN WHEN THE DTC SETS:

1. The ECM illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.

2. The ECM records the operating conditions at the time the diagnostic fails. The ECM stores this information in the Freeze Frame/Failure Records.

The ECM Apply Defaulted Warning Action And Fail-Safe Controls:

1. MIL:ON

2. Reduced Engine Power Indicator Lamp:ON

3. Cruise Control Inhibition

CONDITION FOR CLEARING THE DTC:

1 The ECM turns OFF the MIL after 3 consecutive driving cycles when the diagnostic runs and does not fail.

2 A current DTC clears when the diagnostic runs and passes.

3 A history DTC clears after 40 consecutive warm-up cycles,if no failures are reported after the ECM turns OFF the MIL

4 Use the diagnostic tool to clear the MIL and the DTC.

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