P0204

Tests 1 - 2:

Tests 3 - 7:

Tests 8 - 9:

SYMPTOM
P0204 INJECTOR # 4 CONTROL CIRCUIT

WHEN MONITORED
with battery voltage greater than 10.4 volts, the auto shutdown relay energized, injector pulse width less than 10 ms, and engine speed less than 3000 rpm.

SET CONDITION
This DTC takes 0.64 to 10.0 seconds to set when no inductive kick is sensed. 18 ms after injector turns OFF, and with no injectors ON.

POSSIBLE CAUSES
- Auto shutdown relay output circuit open
- Injector # 4
- Injector control circuit wiring harness intermittent defect
- Injector control circuit wiring harness observable defect
- Injector # 4 driver circuit open
- Injector # 4 driver circuit shorted to ground
- Powertrain control module