DTC P0615-14: Starter Relay Circuit Short to Ground or Open [10/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Toyota Highlander, 2024 Toyota Highlander, and 2023 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- READ VALUE USING GTS (STARTER SW)
- Check the value displayed on the GTS when the ignition switch is turned to the ON and START positions.
Powertrain > Engine > Data List
Tester Display Starter SW OK
Condition GTS Display (Starter SW) Ignition switch ON OFF Engine started ON Result
Proceed to OK NG
Result:
OK
CHECK FOR INTERMITTENT PROBLEMS. Refer to CHECK FOR INTERMITTENT PROBLEMS [10/2022 - ]
Result:
NG
See step 2
- Check the value displayed on the GTS when the ignition switch is turned to the ON and START positions.
- CHECK HARNESS AND CONNECTOR (ECM - ST RELAY)
- Disconnect the park/neutral position switch assembly connector.
- Disconnect the ECM connector.
- Disconnect the certification ECU (smart key ECU assembly) connector.
- Disconnect the engine stop and start ECU connector.
- Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A83-16 (STA) - 2 (ST relay) Always Below 1 Ω Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR