- VL-Voltage before Boosting
- Power Resource VB
- VH-Voltage after Boosting
- Boost Ratio
Lexus NX: DC/DC Converter Voltage Sensor "A" Range / Performance (P0E32-585)
Lexus NX Service Manual / Engine & Hybrid System / 2ar-fxe (hybrid / Battery Control) / Hybrid Control System / DC/DC Converter Voltage Sensor "A" Range / Performance (P0E32-585)
DTC SUMMARY
MALFUNCTION DESCRIPTION
The hybrid vehicle control ECU detects a VL sensor malfunction.
The cause of this malfunction may be one of the following:
Inside of inverter voltage sensor circuit malfunction
- Voltage sensor malfunction
- Motor generator control ECU (MG ECU) malfunction
- Communication (wire harness) malfunction
High voltage system malfunction
- Inverter with converter assembly malfunction
DESCRIPTION
Refer to the description for DTC P0E33-589.
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| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P0E32-585 | DC/DC Converter Voltage Sensor "A" Range / Performance | Boost converter voltage (VL) sensor performance malfunction: When not boosting, differences between "VL-Voltage before Boosting" and "Power Resource VB", and "VL-Voltage before Boosting" and "VH-Voltage after Boosting" are large. (1 trip detection logic) | Inverter with converter assembly | Comes on | Master Warning Light: Comes on |
| DTC No. | Data List |
|---|---|
| P0E32-585 | |
MONITOR DESCRIPTION
The hybrid vehicle control ECU monitors the boost converter voltage sensor signal. If the hybrid vehicle control ECU detects an abnormality in the sensor signal, the hybrid vehicle control ECU will illuminate the MIL and store a DTC.
MONITOR STRATEGY
| Related DTCs | P0E32 (INF 585): Voltage (VL) sensor deviation |
| Required sensors/components | Boost converter |
| Frequency of operation | - |
| Duration | TMC's intellectual property |
| MIL operation | 1 driving cycle |
| Sequence of operation | None |
TYPICAL ENABLING CONDITIONS
| The monitor will run whenever the following DTCs are not stored | TMC's intellectual property |
| Other conditions belong to TMC's intellectual property | - |
TYPICAL MALFUNCTION THRESHOLDS
| TMC's intellectual property | - |
COMPONENT OPERATING RANGE
| Hybrid vehicle control ECU | DTC P0E32 (INF 585) is not detected |
CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for 30 seconds or more.
- Turn the power switch on (IG) and turn the Techstream on.
- Turn the power switch on (READY).
- With the shift lever in D, depress both the accelerator pedal and brake pedal at the same time to raise the SOC to a sufficient level.
- Move the shift lever to P, check that the engine is stopped and move the shift lever to N.
- Set the A/C for maximum cooling.
- Leave the vehicle for a few minutes.
- Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
-
Read the current DTCs.
HINT:
- If a current DTC is output, the system is malfunctioning.
- If current DTCs are not output, perform the following steps to check for permanent DTCs.
- Check that the permanent DTCs are cleared.
- If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again.
CAUTION / NOTICE / HINT
HINT:
When the accelerator pedal is not depressed with the power switch on (READY) and the shift lever in P, if "VH-Voltage after Boosting" and the "Power Resource VB" is approximately same after repair, the condition is judged as normal.
PROCEDURE
| 1. | CHECK DTC OUTPUT (HYBRID CONTROL) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
(d) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes| Result | Proceed to |
|---|---|
| P0E32-585 only is output, or DTCs except the ones in the tables below are also output. | A |
| DTCs shown in Table 1 are output simultaneously. | B |
| DTCs shown in Table 2 are output simultaneously. | C |
Table 1:
| Malfunction Content | Relevant DTC | |
|---|---|---|
| Microcomputer malfunction | P0A1A-151, 658 | Generator Control Module |
| P0A1B-786 | Drive Motor "A" Control Module | |
| P0A1D-148 | Hybrid Powertrain Control Module | |
| P1C2A-155 | Generator A/D Converter Circuit | |
| P1CA6-156 | Generator Control Module Malfunction | |
| P1CA7-193 | Drive Motor Control Module Malfunction | |
| P2511-149 | HV CPU Power Relay Sense Circuit Intermittent No Continuity | |
| P3133-659 | Communication Error from Generator to Drive Motor "A" | |
| P3134-661 | Communication Error from Drive Motor "A" to Generator | |
| P324E-788 | MG-ECU Power Relay Intermittent Circuit | |
| Power source circuit malfunction | P06E6-164 | Sensor Power Supply "C" Circuit / Open |
| P1C73-512 | Sensor Standard Voltage "F" Circuit / Open | |
| Communication system malfunction | U0110 (all INF codes)*1 | Lost Communication with Drive Motor Control Module "A" |
| System malfunction | P0D2F-266 | Drive Motor "A" Inverter Voltage Sensor Circuit Low |
| P0D30-267 | Drive Motor "A" Inverter Voltage Sensor Circuit High | |
| P0E33-589 | DC/DC Converter Voltage Sensor "A" Low | |
| P0E34-590 | DC/DC Converter Voltage Sensor "A" High | |
Table 2:
| Malfunction Content | Relevant DTC | |
|---|---|---|
| Microcomputer malfunction | P0AFC-123 | Hybrid Battery Pack Sensor Module |
| Sensor and actuator circuit malfunction | P0B3D-123 | Hybrid Battery Voltage Sensor "A" Circuit Low |
| P0B42-123 | Hybrid Battery Voltage Sensor "B" Circuit Low | |
| P0B47-123 | Hybrid Battery Voltage Sensor "C" Circuit Low | |
| P0B4C-123 | Hybrid Battery Voltage Sensor "D" Circuit Low | |
| P0B51-123 | Hybrid Battery Voltage Sensor "E" Circuit Low | |
| P0B56-123 | Hybrid Battery Voltage Sensor "F" Circuit Low | |
| P0B5B-123 | Hybrid Battery Voltage Sensor "G" Circuit Low | |
| P0B60-123 | Hybrid Battery Voltage Sensor "H" Circuit Low | |
| P0B65-123 | Hybrid Battery Voltage Sensor "I" Circuit Low | |
| P0B6A-123 | Hybrid Battery Voltage Sensor "J" Circuit Low | |
| P0B6F-123 | Hybrid Battery Voltage Sensor "K" Circuit Low | |
| P0B74-123 | Hybrid Battery Voltage Sensor "L" Circuit Low | |
| P0B79-123 | Hybrid Battery Voltage Sensor "M" Circuit Low | |
| P0B7E-123 | Hybrid Battery Voltage Sensor "N" Circuit Low | |
| P0B83-123 | Hybrid Battery Voltage Sensor "O" Circuit Low | |
| P0B88-123 | Hybrid Battery Voltage Sensor "P" Circuit Low | |
| P0B8D-123 | Hybrid Battery Voltage Sensor "Q" Circuit Low | |
| P0B92-123 | Hybrid Battery Voltage Sensor "R" Circuit Low | |
| P308A-123 | Hybrid Battery Voltage Sensor All Circuits Low | |
HINT:
- *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure.
-
P0E32-585 may be output as a result of the malfunction indicated by the DTCs above.
- The chart above is listed in inspection order of priority.
- Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)
(e) Turn the power switch off.
| A | .gif) | REPLACE INVERTER WITH CONVERTER ASSEMBLY |
| B | | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
| C | | GO TO DTC CHART (HYBRID BATTERY SYSTEM) |
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Removal
REMOVAL PROCEDURE 1. REMOVE RADIATOR SUPPORT OPENING COVER Click here 2. REMOVE HOOD LOCK ASSEMBLY Click here 3. REMOVE CENTER HOOD CUSHION (a) Detach the 2 claws and remove the center hood cushion. 4. REMOVE HOOD TO FRONT FENDER SEAL LH (a) Detach the clip and remove the hood to front fend
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