P0AE7

L110 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0AE7-224: Hybrid Battery Precharge Contactor Control Circuit High

DTC P0AE7-224 - Hybrid Battery Precharge Contactor Control Circuit High

DESCRIPTION

Refer to the circuit description for DTC P0AE6-225 P0AE6.






MONITOR DESCRIPTION

The hybrid vehicle control ECU monitors the proper operation of the SMRP. If the hybrid vehicle control ECU detects an open or short in the SMRP circuit, the hybrid vehicle control ECU will illuminate the MIL and set a DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





WIRING DIAGRAM

See the wiring diagram for P0AE6-225 P0AE6.

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 (HYBRID VEHICLE CONTROL ECU - BATTERY PACK WIRE CONNECTOR)





(a) Disconnect the battery pack wire connector Components.
(b) Turn the power switch on (IG).





(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:






NG -- CHECK HARNESS AND CONNECTOR
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONVERTER - BATTERY PACK WIRE CONNECTOR)
CAUTION: Be sure to wear insulated gloves.





(a) Check that the service plug grip is not installed L110 Hybrid Vehicle Control System.
(b) Disconnect the connector N1 from the hybrid vehicle converter Components.
(c) Turn the power switch on (IG).





(d) Measure the voltage according to the value(s) in the table below.
Standard voltage:





NOTE: Turning the power switch on (IG) with the battery pack wire connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
(e) Turn the power switch off.
(f) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE HYBRID VEHICLE CONVERTER
3. CHECK HARNESS AND CONNECTOR





(a) Disconnect connector A54 from the hybrid vehicle control ECU.
(b) Turn the power switch on (IG).





(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:





NOTE: Turning the power switch on (IG) with the battery pack wire connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE HYBRID VEHICLE CONTROL ECU