DTC P0215 Engine Shutoff (ESO) Solenoid Control Circuit. GMC Truck GMC C Pickup

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC C Pickup - 2WD 🢒 DTC 🢒 DTC P0215 Engine Shutoff (ESO) Solenoid Control Circuit

Refer to Engine Controls Schematics

Engine Shutoff Solenoid, Fuel Solenoid and Module

Engine Controls Components
Fuel System Description
Engine Data Sensors-ECT, IAT, and Boost (BARO) Sensor
Water-in fuel Sensor, Fuel Heater, and Fuel Temperature Sensor
OBD II Symbol Description Notice
IGN A Fuse and Ignition Switch
ENG 1 and ECM 1 Fuses (Diesel)
Handling ESD Sensitive Parts Notice
.

Circuit Description

The injection pump fuel supply line has a solenoid controlled shutoff located in the injection pump. When the solenoid is energized (key in the run position), the valve is open and fuel is supplied to the injection pump. By providing a ground path, the PCM energizes the solenoid.

Conditions for Running the DTC

The ignition switch in the ON position or the engine is operating.

Conditions for Setting the DTC

•	The PCM has requested the ESO ON and the control circuit voltage at the PCM is more than 8 volts.

•	All of the diagnostic set conditions met for 2 seconds.

•	The PCM has requested the ESO OFF and the control circuit voltage at the PCM is less than 8 volts.

•	All of the diagnostic set conditions met for 2 seconds.

Action Taken When the DTC Sets

•	The PCM will not illuminate the malfunction indicator lamp (MIL).

•	The PCM records the operating conditions at the time the diagnostic fails. This information will store in the Failure Records.

Conditions for Clearing the MIL/DTC

•	A History DTC clears after forty consecutive warm-up cycles, if this or any other emission related diagnostic does not report any failures

•	The use of a scan tool.

Diagnostic Aids

An open in the control circuit or the ignition feed circuit will cause a DTC P0215. Also a no start condition will exist. The scan tool has the ability to turn the engine shutoff solenoid ON and OFF. This can be used as a quick operational check.

An intermittent may be caused by any of the following conditions:

•	A poor connection

•	Rubbed through wire insulation

•	A broken wire inside the insulation

Thoroughly check any circuitry that is suspected of causing the intermittent complaint. Refer to Testing for Electrical Intermittents in Wiring Systems.

If a repair is necessary, then refer to Wiring Repairs or Connector Repairs in Wiring Systems.

Test Description

The numbers below refer to the step numbers on the diagnostic table.

This step will check the ESO control circuit for an open.

After repairing the circuit for a short to voltage, check the solenoid for proper operation.

Step

Action

Values

Yes

Important: Before clearing the DTCs, use the scan tool Capture Info to save the Freeze Frame and Failure Records for reference. The control modules data is deleted once the Clear Info function is used.

Did you perform the Powertrain On-Board Diagnostic (OBD) System Check?

Go to Step 2

Go to Powertrain On Board Diagnostic (OBD) System Check

Turn the ignition OFF.
Disconnect the ESO harness electrical connector.
Ignition ON, engine OFF.
With an unpowered test lamp connected to chassis ground, probe the ESO ignition feed circuit at the engine harness connector.

Is the test lamp ON?

Go to Step 3

Go to Step 6

Turn the ignition OFF.
With an unpowered test lamp, jumper the ESO engine harness terminals together.
Turn the ignition ON with the engine OFF.

Is the test lamp ON?

Go to Step 4

Go to Step 7

Turn the ignition ON with the engine OFF.
With an unpowered test lamp connected to B+, probe the ESO control circuit.
With the scan tool, command the ESO solenoid ON and OFF.

Does the test lamp turn ON and OFF with each command?

Go to Step 5

Go to Step 8

Check the ESO harness for a proper connection and replace the terminals if necessary. Refer to Wiring Repairs in Wiring Systems.

Did any terminal require replacement?

Go to Step 13

Go to Step 11

Check the ESO ignition feed circuit for the following conditions:

•	An open wire

•	An open fuse

Repair the problem as necessary. Refer to Wiring Repairs in Wiring Systems.

Is the action complete?

Go to Step 13

Turn the ignition ON with the engine OFF.
With an unpowered test lamp connected to ground, probe the ESO control circuit at the ESO harness connector.

Is the test lamp ON?

Go to Step 10

Go to Step 9

Repair the short to ground on the ESO control circuit. Refer to Wiring Repairs in Wiring Systems.

Is the action complete?

Go to Step 13

Check the ESO control circuit for the following conditions:

•	An open wire

•	Proper connection at the PCM

If an ESO control circuit problem was found, repair it as necessary. Refer to Wiring Repairs in Wiring Systems.

Is the action complete?

Go to Step 13

Go to Step 12

Check the ESO control circuit for a short to voltage.
If an ESO control circuit problem was found, repair it as necessary. Refer to Wiring Repairs in Wiring Systems.

Is the action complete?

Go to Step 13

Go to Step 12

Important: The new injection pump must be timed. Refer to Fuel Injection Pump Timing Adjustment .

Replace the injection pump. Refer to Fuel Injection Pump Replacement .

Is the action complete?

Go to Step 13

Important: The new PCM must be programmed.

Replace the PCM. Refer to Powertrain Control Module Replacement/Programming .

Is the action complete?

Go to Step 13

Using the scan tool, clear the DTCs.
Start the engine.
Allow the engine to idle until the engine reaches normal operating temperature.
Select DTC and the Specific DTC function.
Enter the DTC number which was set.
Operate the vehicle, with the Conditions for Setting this DTC, until the scan tool indicates the diagnostic Ran.

Does the scan tool indicate the diagnostic Passed?

Go to Step 14

Go to Step 2

Does the scan tool display any additional undiagnosed DTCs?

Go to the applicable DTC

System OK