Inspection Procedure

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Performing the check procedures for a long time with the shift lever in N may cause DTC P3000-388 to be set.

HINT:

If it is necessary to replace the battery smart unit, voltages need to be confirmed after installing the new battery smart unit. Confirm that "Power Resource VB", "VL-Voltage before Boosting", and "VH-Voltage after Boosting" in the Data List are 280 V or more with the power switch on (READY), the shift lever in P, and the engine stopped. When the system is normal, the "Power Resource VB", "VL-Voltage before Boosting", and "VH-Voltage after Boosting" values should be almost equal (voltage boosting will not occur when the shift lever is in N). If the difference between each voltage exceeds the values specified below, there is a malfunction in the inverter with converter assembly.

Inspection voltage	Maximum voltage difference
Difference between "Power Resource VB" and "VL-Voltage before Boosting"	40 V
Difference between "Power Resource VB" and "VH-Voltage after Boosting"	40 V
Difference between "VL-Voltage before Boosting" and "VH-Voltage after Boosting"	50 V