Starter Solenoid Does Not Click. GMC Truck Sierra Classic

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 4WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Starter Solenoid Does Not Click

Starter Solenoid Does Not Click w/Allison

Step	Action	Yes	No
Schematic Reference: Starting and Charging Schematics
1	Did you preform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Turn the ignition switch to the START position. Does the engine crank?	Go to Testing for Intermittent Conditions and Poor Connections	Go to Step 3
3	Turn the ignition switch to the START position. Does the starter motor relay click?	Go to Step 10	Go to Step 4
4	Turn OFF the ignition. Disconnect the powertrain control module (PCM) harness connector. Connect a test lamp between the Crank Voltage circuit of the PCM harness and a good ground. With the transmission in park, turn the ignition switch to the START position. Does the test light illuminate?	Go to Step 7	Go to Step 5
5	Inspect for poor connections at the PCM connector, underhood fuse block or ignition switch harness connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 26	Go to Step 6
6	Test the supply voltage circuit of the crank voltage circuit and Crank fuse for an open or high resistance. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 26	Go to Step 24
7	Turn OFF the ignition. Disconnect the PCM harness connector. Connect a test lamp between the starter enable relay control circuit of the PCM harness and a good ground. Turn the ignition to the START position. Does the test lamp illuminate?	Go to Step 17	Go to Step 8
8	Remove the starter motor relay. Connect a test light from the supply voltage circuit of the starter motor relay coil circuit to ground. With the transmission in park, turn the ignition switch to the START position. Does the test light illuminate?	Go to Step 9	Go to Step 15
9	Connect a test light from the supply voltage circuit of the starter motor relay coil circuit to the control circuit of the starter motor relay coil circuit. With the transmission in park, turn the ignition switch to the START position. Does the test light illuminate?	Go to Step 16	Go to Step 13
10	Turn OFF the ignition. Disconnect the starter motor relay. Connect a test lamp between the battery positive voltage circuit of the starter motor relay switch circuit and a good ground. Does the test lamp illuminate?	Go to Step 11	Go to Step 21
11	Connect a 30-amp fused jumper between the battery positive voltage circuit of the starter motor relay switch circuit and the supply voltage circuit of the starter solenoid. Does the engine crank?	Go to Step 16	Go to Step 12
12	Does the fuse in the jumper open?	Go to Step 22	Go to Step 15
13	Test the control circuit of the starter motor relay for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 26	Go to Step 23
14	Test the supply voltage circuit of the starter motor relay coil circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 26	Go to Step 19
15	Test the supply voltage circuit of the starter solenoid for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 26	Go to Step 20
16	Inspect for poor connections at the starter motor relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 26	Go to Step 23
17	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 26	Go to Step 18
18	Replace the PCM. Refer to Control Module References for replacement, setup and programming. Did you complete the replacement?	Go to Step 26	--
19	Inspect for poor connections at the ignition switch harness connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 26	Go to Step 24
20	Inspect for poor connections at the starter solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 26	Go to Step 25
21	Repair the open or high resistance in the battery positive voltage circuit of the Starter Motor relay switch circuit. Refer to Wiring Repairs . Did you complete the repair?	Go to Step 26	--
22	Repair the short to ground in the supply voltage circuit of the starter solenoid. Refer to Wiring Repairs . Did you complete the repair?	Go to Step 26	--
23	Replace the Starter Relay. Refer to Relay Replacement . Did you complete the replacement?	Go to Step 26	--
24	Replace the ignition switch. Refer to Ignition and Start Switch Replacement . Did you complete the replacement?	Go to Step 26	--
25	Replace the starter. Refer to Starter Motor Replacement . Did you complete the replacement?	Go to Step 26	--
26	Operate the system for which the symptom occurred. Did you correct the condition?	System OK	Go to Step 1

Starter Solenoid Does Not Click w/o Allison

Step

Action

Yes

Schematic Reference: Starting and Charging Schematics

Did you preform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

Turn the ignition switch to the START position.

Does the engine crank?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

Turn the ignition switch to the START position.

Does the starter motor relay click?

Go to Step 14

Go to Step 4

Is the vehicle equipped with a manual transmission?

Go to Step 5

Go to Step 7

Install a scan tool.
Turn ON the ignition, with the engine OFF.
With a scan tool, observe the Clutch Start Switch Signal parameter in the PCM data list while depressing the clutch pedal.

Does the scan tool display Released/Applied?

Go to Step 7

Go to Step 6

Turn OFF the ignition.
Disconnect the powertrain control module (PCM) harness connector.
Connect a test lamp between the clutch start switch signal of the PCM harness and a good ground.
Turn the ignition to the START position while depressing the clutch pedal.

Does the test lamp illuminate?

Go to Step 10

Go to Step 11

Turn OFF the ignition.
Disconnect the PCM harness connector.
Connect a test lamp between the crank voltage circuit of the PCM harness and a good ground.
With the transmission in park, or clutch pedal depressed, turn the ignition switch to the START position.

Does the test light illuminate?

Go to Step 10

Go to Step 8

Inspect for poor connections at the PCM connector, underhood fuse block or ignition switch harness connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 32

Go to Step 9

Test the supply voltage circuit of the crank voltage circuit and Crank fuse for an open or high resistance. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 32

Go to Step 30

Turn OFF the ignition.
Disconnect the PCM harness connector.
Connect a test lamp between the starter enable relay control circuit of the PCM harness and a good ground.
Turn the ignition to the START position.

Does the test lamp illuminate?

Go to Step 22

Go to Step 11

Remove the starter motor relay.
Connect a test light from the supply voltage circuit of the starter motor relay coil circuit to ground.
With the transmission in park, or clutch pedal depressed, turn the ignition switch to the START position.

Does the test light illuminate?

Go to Step 12

Go to Step 13

Connect a test light from the supply voltage circuit of the starter motor relay coil circuit to the control circuit of the starter motor relay coil circuit.
With the transmission in park, or clutch pedal depressed, turn the ignition switch to the START position.

Does the test light illuminate?

Go to Step 20

Go to Step 17

Turn OFF the ignition.
Disconnect the park neutral position (PNP) switch. Refer to Park/Neutral Position Switch Replacement for the 4L60-E/4L65-E transmission, Park/Neutral Position Switch Replacement for the 4L80-E/4L85-E transmission or Clutch Pedal Engine Start Switch Replacement .
Turn ON the ignition, with the engine OFF.
Connect a 10-amp fused jumper between the starter motor relay coil control circuits of the PNP switch or clutch pedal position switch.
With the transmission in PARK, or clutch pedal depressed, turn the ignition switch to the START position.

Does the test lamp illuminate?

Go to Step 21

Go to Step 18

Turn OFF the ignition.
Disconnect the starter motor relay.
Connect a test lamp between the battery positive voltage circuit of the starter motor relay switch circuit and a good ground.

Does the test lamp illuminate?

Go to Step 15

Go to Step 26

Connect a 30-amp fused jumper between the battery positive voltage circuit of the starter motor relay switch circuit and the supply voltage circuit of the starter solenoid.

Does the engine crank?

Go to Step 20

Go to Step 16

Does the fuse in the jumper open?

Go to Step 27

Go to Step 19

Test the control circuit of the starter motor relay for an open or high resistance. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 32

Go to Step 28

Test the supply voltage circuit of the starter motor relay coil circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 32

Go to Step 24

Test the supply voltage circuit of the starter solenoid for an open or high resistance. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 32

Go to Step 25

Inspect for poor connections at the starter motor relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 32

Go to Step 28

Inspect for the following:

•

If equipped with an automatic transmission, inspect for poor connection at the PNP switch harness connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . If OK, perform the Park/Neutral Position Switch Adjustment for the 4L60-E/4L65-E transmission, Park/Neutral Position Switch Adjustment for the 4L80-E/4L85-E transmission.

•	If equipped with a manual transmission, inspect for poor connection at the clutch pedal position switch harness connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 32

Go to Step 29

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 32

Go to Step 23

Replace the PCM. Refer to Control Module References for replacement, setup and programming.

Did you complete the replacement?

Go to Step 32

Inspect for poor connections at the ignition switch harness connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 32

Go to Step 30

Inspect for poor connections at the starter solenoid. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 32

Go to Step 31

Repair the open or high resistance in the battery positive voltage circuit of the starter motor relay switch circuit. Refer to Wiring Repairs .

Did you complete the repair?

Go to Step 32

Repair the short to ground in the supply voltage circuit of the starter solenoid. Refer to Wiring Repairs .

Did you complete the repair?

Go to Step 32

Replace the starter relay. Refer to Relay Replacement .

Did you complete the replacement?

Go to Step 32

Replace the PNP switch. Refer to Park/Neutral Position Switch Replacement for the 4L60-E/4L65-E transmission or Park/Neutral Position Switch Replacement for the 4L80-E/4L85-E transmission.

Replace the clutch pedal position switch. Refer to Clutch Pedal Engine Start Switch Replacement .

Did you complete the replacement?

Go to Step 32

Replace the ignition switch. Refer to Ignition and Start Switch Replacement .

Did you complete the replacement?

Go to Step 32

Replace the starter. Refer to Starter Motor Replacement .

Did you complete the replacement?

Go to Step 32

Operate the system for which the symptom occurred.

Did you correct the condition?

System OK

Go to Step 2