Advanced Diagnostics

Advanced Diagnostics

DTC P0615: Starter Cut Relay STRLD Circuit Malfunction






General Description
A starter switch inhibit system prevents the starter from working when the engine is running to prevent damage to the starter pinion gear. If the ignition switch is turned to START (III) mistakenly while the engine is running, the powertrain control module (PCM) prevents the starter from working according to the engine rotation information and the output (STRLY) signal of the starter cut relay is switched to LOW. In this system, two starter cut relays are connected in series (starter cut relay 1, starter cut relay 2) to prevent the starter from continuing to run due to a starter cut relay malfunction. Also a diagnosis line (STRLD) is used to monitor voltage in the middle of starter cut relay 1 and starter cut relay 2. The PCM detects an OPEN malfunction, an ON malfunction of starter cut relay 1, and an ON malfunction of starter cut relay 2, according to the information. If the voltage on the diagnosis line (STRLD) input does not exceed upper and lower limits for a specified duration when the ignition switch is turned to START (III) and the output of the starter cut relay (STRLY) is HIGH (starter ON), an OPEN malfunction of the diagnosis line is detected.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status






Enable Conditions






Malfunction Threshold
The diagnosis line (STRLD) input voltage is between 2.4 V to 2.6 V for at least 1 second.

Diagnosis Details

Conditions for illuminating the indicator
When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The MIL does not come on.

Conditions for clearing the DTC
The DTC and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.