Service Information

Captiva

DTC P0201, P0202, P0203, or P0204

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC P0201: Cylinder 1 Injector Control Circuit

DTC P0202: Cylinder 2 Injector Control Circuit

DTC P0203: Cylinder 3 Injector Control Circuit

DTC P0204: Cylinder 4 Injector Control Circuit

Diagnostic Fault Information

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
Ignition 1 Voltage - Fuse to Splice	¹	²	-	-
Ignition 1 Voltage - Splice to Injector	¹	P0201, P0202, P0203, or P0204	-	-
Fuel Injector 1 Control	P0201, P0300	P0201, P0300	P0201	-
Fuel Injector 2 Control	P0202, P0300	P0202, P0300	P0202	-
Fuel Injector 3 Control	P0203, P0300	P0203, P0300	P0203	-
Fuel Injector 4 Control	P0204, P0300	P0204, P0300	P0204	-
¹Open fuse, cranks no start ²Cranks no start

Circuit/System Description

The control module enables the appropriate fuel injector pulse for each cylinder. Ignition voltage is supplied to the fuel injectors. The control module controls each fuel injector by grounding the control circuit via a solid state device called a driver. The control module monitors the status of each driver. If the control module detects an incorrect voltage for the commanded state of the driver, a fuel injector control circuit DTC sets.

Conditions for Running the DTC

•	The engine is running.

•	The ignition voltage is between 9-18 V for more than 1 second.

•	These DTCs run continuously when the above conditions are met.

Conditions for Setting the DTC

•	The control module detects an incorrect voltage on the fuel injector control circuit.

•	The above condition is met for more than 6 seconds.

Action Taken When the DTC Sets

•	DTCs P0201, P0202, P0203, P0204 are Type B DTCs.

•	The driver information center (DIC) displays the Service Traction, Service ESC, and ESC OFF messages.

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Special Tools

J 44603 Injector Test Lamp

For equivalent regional tools, refer to Special Tools .

Circuit/System Verification

Engine idling, observe the scan tool Cylinder 1-4 Injector Control Circuit Status parameters. Verify the Injector Control Circuit Status parameters display OK or Not Run.
Engine running, observe the DTC information with a scan tool. DTCs P0201, P0202, P0203, or P0204 should not set.
Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

Ignition OFF, disconnect the harness connector at the appropriate fuel injector.
Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 1 and ground.

⇒	If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, test or replace the fuel injector.

Ignition OFF, connect a J 44603 Test Lamp between the control circuit terminal 2 and the ignition circuit terminal 1 of the appropriate fuel injector.
Engine cranking, the test lamp should flash.

⇒	If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the engine control module (ECM).

⇒	If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the ECM.

If all circuits test normal, test or replace the fuel injector.

Component Testing

•	Fuel Injector Solenoid Coil Test

•	Fuel Injector Balance Test

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

•	Fuel Injector Replacement

•	Control Module References for replacement, setup, and programming