Engine Oil Pressure Indicator Always On. Chevrolet Colorado Pickup

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2006 🢒 Colorado Pickup - 2WD 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Engine Oil Pressure Indicator Always On

Step	Action	Yes	No
Schematic Reference: Instrument Cluster Schematics Connector End View Reference: Instrument Panel, Gages, and Console Connector End Views , Powertrain Control Module Connector End Views for the 2.8L engine, or Powertrain Control Module Connector End Views for the 3.5L engine
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Start the engine. Does the engine oil pressure indicator illuminate after the display test?	Go to Step 3	Go to Testing for Intermittent Conditions and Poor Connections
3	Install a scan tool. Turn the ignition ON. With the scan tool, observe the Engine Oil Pressure Switch parameter in the powertrain control module (PCM) Engine Data 3 data list. Does the Engine Oil Pressure Switch parameter display Ok?	Go to Step 10	Go to Step 4
4	Turn the ignition OFF. Disconnect the engine oil pressure (EOP) switch. Start the engine. With the scan tool, observe the Engine Oil Pressure Switch parameter. Does the Engine Oil Pressure Switch parameter display Ok?	Go to Step 6	Go to Step 5
5	Test the signal circuit of the EOP switch for a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 7
6	Inspect for poor connections at the harness connector of the EOP switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 8
7	Inspect for poor connections at the harness connector of the PCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 11	Go to Step 9
8	Replace the EOP switch. Refer to Engine Oil Pressure Sensor and/or Switch Replacement for the 2.8L engine or Engine Oil Pressure Sensor and/or Switch Replacement for the 3.5L engine. Did you complete the replacement?	Go to Step 11	--
9	Replace the PCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	Go to Step 11	--
10	Replace the instrument panel cluster (IPC). Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	Go to Step 11	--
11	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2