Starter Solenoid Does Not Click
Starter Solenoid Does Not Click
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Diagnostic Procedure Instructions) provides an overview of each diagnostic category.
Diagnostic Fault Information
Circuit/System Description
When the ignition switch is placed in the START position, a signal is supplied to the starter relay. Providing that the transmission is in Park/Neutral or the clutch is depressed. The engine will crank.
Reference Information
Schematic Reference
Starting and Charging Schematics (Electrical Diagrams)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
Starting System Description and Operation (Description and Operation)
Electrical Information Reference
* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
Transmission range selector in park or neutral or clutch depressed on a manual transmission, attempt to start the vehicle. The crank relay should click and the engine should begin cranking.
If the crank relay does not click or the engine does not crank, refer to Crank Relay Circuit Malfunction.
Circuit/System Testing
Crank Relay Circuit Malfunction
1. Ignition OFF, disconnect the crank relay.
2. Ignition OFF, test for less than 5.0 Ohms between the relay ground circuit terminal 85 and ground.
• If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify a test lamp illuminates between the relay switch B+ circuit terminal 30 and ground.
• If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. Ensure the parking brake is applied and the transmission is in PARK/Neutral.
5. Momentarily install a 40A fused jumper wire between the B+ circuit terminal 30 and the control output circuit terminal 87.
6. The starter solenoid should engage and the engine should begin cranking.
• If the solenoid does not engage, test the control output circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the starter motor.
7. Connect a test lamp between the coil control circuit terminal 86 and the coil ground circuit terminal 85.
8. With the transmission range selector in park or neutral, cycle the ignition between the OFF and CRANK position. The test lamp should turn ON and OFF when changing between the commanded states.
• If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the ignition switch.
• If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the ignition switch.
9. If all circuits test normal, test or replace the crank relay.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Relay Replacement (Within an Electrical Center) (Service and Repair)
* Starter Replacement (1.4L) (Service and Repair)Starter Replacement (1.2L DOHC) (Service and Repair)Starter Replacement (1.4L LDT, 1.6 LXV) (Service and Repair)
* Control Module References (Programming and Relearning) for ECM replacement, setup and programming