DTC P0AE6-225: Hybrid Battery Precharge Contactor Control Circuit Low [11/2016 - ]: Procedure
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - BODY GROUND)
- Disconnect the F136 hybrid vehicle control ECU assembly connector.
- Measure the resistance according to the value(s) in the table below.
*a Rear view of wire harness connector
(to Hybrid Vehicle Control ECU Assembly)Standard Resistance
Tester Connection Condition Specified Condition F136-3 (SMRP) - Body ground Power switch off 112 to 274 Ω - Reconnect the F136 hybrid vehicle control ECU assembly connector.
Result
Proceed to OK NG
Result: 1
OK
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to COMPONENTS [11/2016 - ]
Result: 2
NG
See step 2
- CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - HYBRID BATTERY JUNCTION BLOCK ASSEMBLY) WARNING:
Be sure to wear insulated gloves and protective goggles.
- Check that the service plug grip is not installed.NOTE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair information because this may cause a malfunction.
- Remove the upper hybrid vehicle battery cover sub-assembly.
Refer to PROCEDURE - Step 36
- Disconnect the x3 hybrid battery junction block assembly connector.
- Disconnect the F136 hybrid vehicle control ECU assembly connector.
- Measure the resistance according to the value(s) in the table below.
*a Rear view of wire harness connector
(to Hybrid Vehicle Control ECU Assembly)*b Rear view of wire harness connector
(to Hybrid Battery Junction Block Assembly)Standard Resistance
Tester Connection Condition Specified Condition F136-3 (SMRP) or x3-3 (SMRP) - Body ground and other terminals Power switch off 10 kΩ or higher - Reconnect the F136 hybrid vehicle control ECU assembly connector.
- Reconnect the x3 hybrid battery junction block assembly connector.
- Install the upper hybrid vehicle battery cover sub-assembly.
Result
Proceed to OK NG
Result: 1
OK
REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY. Refer to COMPONENTS [02/2014 - ]
Result: 2
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Check that the service plug grip is not installed.