Code Definition

P216A — Cylinder 5 Injector High Control Circuit

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Holden

About P216A

P216A is a generic (obd-ii standard) powertrain diagnostic trouble code recorded for Holden vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P216A is stored, the module has detected a signal or supply voltage higher than the expected operating range.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P216A is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The Engine Control Module (ECM) supplies battery voltage to the fuel injector through the high side control circuit and monitors that circuit for correct voltage during the commanded on and off states. DTC P216A is set when the ECM detects an abnormal voltage on the cylinder 5 injector high control circuit, such as voltage still present when the circuit is commanded off, or voltage failing to reach the expected level when commanded on. This places the fault in the injector power supply path to cylinder 5 rather than in the low side control. Because cylinder 5 may not be fuelled correctly, the ...

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