P0617

L110 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0617-142: Starter Relay Circuit High

DTC P0617-142 - Starter Relay Circuit High

DESCRIPTION





WIRING DIAGRAM





INSPECTION PROCEDURE
CAUTION:
- Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting, check the voltage at the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
HINT: Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (ST2 TERMINAL VOLTAGE)
(a) Disconnect connector A54 from the hybrid vehicle control ECU.





(b) Measure the voltage according to the value(s) in the table below when the power switch is off.
Standard voltage:






OK -- CLEAR DTC
NG -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (HV CONTROL ECU - POWER SOURCE CONTROL ECU)
(a) Disconnect connector K73 from the power source control ECU.





(b) Measure the voltage according to the value(s) in the table below when the power switch is off.
Standard voltage:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POWER SOURCE CONTROL ECU
3. CLEAR DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Read and record the DTCs and freeze frame data.
(d) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(e) Clear DTCs and freeze frame data.
NEXT -- Continue to next step.
4. RECONFIRM DTC OUTPUT
(a) Turn the power switch off and leave the vehicle as it is for approximately 5 seconds.
(b) Turn the power switch on (IG) again.
(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(d) Recheck for DTCs.
Result:
DTC P0617-142 is output again.
NO -- CHECK FOR INTERMITTENT PROBLEMS
YES -- REPLACE HYBRID VEHICLE CONTROL ECU