Captiva |
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• | 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. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Control | P0615, P0616 | P0615, P0616 | P0615, P0617 | - |
Ground | - | P0615, P0616 | - | - |
When the ignition switch is placed in the START position, a discrete signal is supplied to the body control module (BCM) notifying it that the ignition is in the START position. The BCM then sends a message to the engine control module (ECM) that crank has been requested. The ECM then verifies that the clutch pedal is depressed or the transmission is in Park/Neutral. If it is, the ECM then supplies 12 V to the control circuit of the starter relay. When this occurs, battery voltage is supplied through the switch of the starter relay to the starter solenoid.
• | The ignition is in the START position. |
• | The system voltage is between 9.5-18 V. |
The ECM detects improper voltage on the control circuit of the starter relay.
DTC P0615, P0616, and P0617 are C type DTCs.
DTC P0615, P0616, and P0617 are C type DTCs.
Starting and Charging Schematics
Starting System Description and Operation
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, test the control circuit terminal 87 for a short to ground. |
⇒ | If the test lamp illuminates, test the control circuit for a short to voltage. |
⇒ | If the M64 motor does not activate, test the control circuit for an open/high resistance. If the circuit tests normal, test or replace the M64 starter motor. |
⇒ | If the test lamp is always ON, test the control circuit for short to voltage. If the circuit tests normal, replace the K20 ECM. |
⇒ | 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 K20 ECM. |
⇒ | If not within the specified range, replace the relay. |
• | 30 and 86 |
• | 30 and 87 |
• | 30 and 85 |
• | 85 and 87 |
⇒ | If not the specified value, replace the relay. |
⇒ | If greater than specified range, replace the relay. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Relay Replacement : Within an Electrical Center → Attached to Wire Harness |
• | Control Module References for ECM replacement, programming and setup |
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