RM3660EC _58 Vehicle Interior _080733 HEATING / AIR CONDITIONING _0598792 AIR CONDITIONING SYSTEM(for HV Model (8ZR-FXE)) C

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for HV Model (8ZR-FXE))  B149887  A/C Inverter Local Missing Message  


DESCRIPTION

The hybrid vehicle control ECU and compressor with motor assembly communicate via a direct line. Compressor control is stopped and this DTC is stored if communication information is cut off or abnormal information occurs.

This DTC is also detected if high-voltage power supplied from the inverter with converter assembly to the compressor control circuit is shut off.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
B149887 A/C Inverter Local Missing Message Diagnosis Condition:

Ignition switch ON (READY)


Malfunction:
·

Error or open in communication line between the hybrid vehicle control ECU and compressor with motor assembly

·

High-voltage power source shut off


Detection Time:

-


·

Harness or connector

·

HV air conditioning wire

·

Compressor with motor assembly

·

Hybrid vehicle control ECU

·

Battery state sensor assembly


Memorized

DTC Detection Condition Combination Table
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3
Diagnosis Condition Ignition switch ON (READY) ○ ○ ○
Malfunction Error in communication line between the hybrid vehicle control ECU and compressor with motor assembly ○ - -
Open in communication line between the hybrid vehicle control ECU and compressor with motor assembly - ○ -
High-voltage power source shut off - - ○
Detection Time - - -
Trip Count 1 trip 1 trip 1 trip

HINT:

If the conditions of either of these patterns are detected, a DTC will be stored.


WIRING DIAGRAM

E432285E14
3.469,2.104 3.927,2.302 0.458,0.198 10 false LIN 1.396,1.052 1.854,1.25 0.458,0.198 10 false 2 5.885,4.031 7.094,4.396 1.208,0.365 10 false Air Conditioning Amplifier Assembly 0.771,3.51 1.229,3.708 0.458,0.198 10 false DOUT 0.917,0.698 1.375,0.896 0.458,0.198 10 false IG1 0.833,1.25 1.292,1.448 0.458,0.198 10 false GND 0.969,5.125 1.427,5.323 0.458,0.198 10 false PB 0.969,5.635 1.427,5.833 0.458,0.198 10 false PE 1.365,5.115 1.802,5.292 0.438,0.177 10 false X1 1.313,3.5 1.75,3.677 0.438,0.177 10 false C96 3.281,1.927 3.74,2.125 0.458,0.198 10 false 2 1.396,0.479 1.854,0.677 0.458,0.198 10 false 1 1.406,3.281 1.865,3.479 0.458,0.198 10 false 3 1.406,4.927 1.865,5.125 0.458,0.198 10 false 2 1.396,5.438 1.865,5.635 0.469,0.198 10 false 1 2.927,2.438 3.385,2.635 0.458,0.198 10 false A148 2.927,2.594 5.031,2.833 2.104,0.24 10 false Battery State Sensor Assembly 2.167,0.833 3.24,1.115 1.073,0.281 10 false ECU-IGP NO. 3 1.885,6.188 3.49,6.427 1.604,0.24 10 false HV Air Conditioning Wire 0.25,6.177 1.292,6.573 1.042,0.396 10 false Compressor with Motor Assembly 0.979,7.438 2.74,7.646 1.76,0.208 10 false : CAN Communication Line 0.979,7 2.625,7.219 1.646,0.219 10 false : LIN Communication Line 4.094,6.188 6.156,6.406 2.063,0.219 10 false Inverter with Converter Assembly 3.771,5.115 4.031,5.323 0.26,0.208 10 false X3 3.021,4.021 4.74,4.271 1.719,0.25 10 false Hybrid Vehicle Control ECU 3.031,3.5 3.469,3.677 0.438,0.177 10 false A147 3.802,4.917 4.021,5.125 0.219,0.208 10 false 1 3.813,5.438 4.271,5.635 0.458,0.198 10 false 2 4.146,5 4.583,5.177 0.438,0.177 10 false ACPB 4.146,5.521 4.583,5.698 0.438,0.177 10 false ACPE 3.458,3.51 3.896,3.688 0.438,0.177 10 false LIN3 3.115,3.292 3.573,3.49 0.458,0.198 10 false 16 3.75,0.688 5.74,0.885 1.99,0.198 10 false from IGP-MAIN Relay 1.354,5.635 1.792,5.813 0.438,0.177 10 false X1 1.302,1.26 1.74,1.438 0.438,0.177 10 false C96 1.313,0.688 1.75,0.865 0.438,0.177 10 false C96 3.771,5.635 4.031,5.844 0.26,0.208 10 false X3

CAUTION / NOTICE / HINT

CAUTION:
·

Before inspecting the high-voltage system, 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.

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>PRECAUTION

·

Do not touch the high-voltage connectors or terminals for 10 minutes after the service plug grip is removed.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>PA10 HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY)>PRECAUTION



NOTICE:
·

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

-

Before disconnecting battery:

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>BEFORE DISCONNECTING BATTERY

-

Automatic learning chart:

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>AUTOMATIC LEARNING CHART


·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

The hybrid control system and air conditioning system output DTCs separately. Perform troubleshooting for the hybrid control system first if DTCs for both systems are output simultaneously.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>PA10 HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY)>HOW TO PROCEED WITH TROUBLESHOOTING

·

The air conditioning system uses the CAN communication system. Inspect the communication functions by following How to Proceed with Troubleshooting. Troubleshoot the air conditioning system after confirming that the communication systems are functioning properly.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HV Model)>HOW TO PROCEED WITH TROUBLESHOOTING



PROCEDURE

1.CHECK FOR DTC (HYBRID CONTROL)
a.

Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes
50001 397

Result:
Result Proceed to
P058A01 and P162B87 are not output A
P058A01 or P162B87 is output B



A

2.CHECK HARNESS AND CONNECTOR (COMPRESSOR WITH MOTOR ASSEMBLY - AUXILIARY BATTERY AND BODY GROUND)

B

7.CHECK FOR DTC
2.CHECK HARNESS AND CONNECTOR (COMPRESSOR WITH MOTOR ASSEMBLY - AUXILIARY BATTERY AND BODY GROUND)
CAUTION:

Do not disconnect the connector on the high-voltage side.


NOTICE:

As other DTCs will be stored when the ignition switch is turned to ON with the connector disconnected, be sure to clear the DTCs after the inspection.


a.
E432368C09
1.448,0.188 1.948,0.438 0.5,0.25 1.698,1.125 1.854,1.688 true 1.563,1.115 1.302,1.698 true 0.583,0.146 0.896,0.344 0.313,0.198 10 false *a 1.573,0.229 1.885,0.427 0.313,0.198 10 false C96 1.729,1.708 2.115,1.906 0.385,0.198 10 false GND 1.177,1.708 1.563,1.906 0.385,0.198 10 false IG1
*a Front view of wire harness connector
(to Compressor with Motor Assembly)


Disconnect the C96 compressor with motor assembly connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
C96-1 (IG1) - Body ground Ignition switch ON 11 to 14 V



c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
C96-2 (GND) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (COMPRESSOR WITH MOTOR ASSEMBLY - HYBRID VEHICLE CONTROL ECU)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK HARNESS AND CONNECTOR (COMPRESSOR WITH MOTOR ASSEMBLY - HYBRID VEHICLE CONTROL ECU)
a.

Disconnect the C96 compressor with motor assembly connector.


b.

Disconnect the A147 hybrid vehicle control ECU connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
C96-3 (DOUT) - A147-16 (LIN3) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

4.INSPECT HV AIR CONDITIONING WIRE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT HV AIR CONDITIONING WIRE
CAUTION:

Be sure to wear insulated gloves.


a.

Disconnect the X1 compressor with motor assembly connector.


b.

Remove the HV air conditioning wire from the inverter with converter assembly.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>8ZR-FXE INVERTER WITH CONVERTER>REMOVAL

NOTICE:

Make sure that no foreign matter, water, etc., enters the inverter with converter assembly.



c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
X1-2 (PB) - X3-1 (ACPB) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

5.INSPECT HV AIR CONDITIONING WIRE

NG

6.INSPECT HV AIR CONDITIONING WIRE
5.INSPECT HV AIR CONDITIONING WIRE
CAUTION:

Be sure to wear insulated gloves.


a.

Disconnect the X1 compressor with motor assembly connector.


b.

Remove the HV air conditioning wire from the inverter with converter assembly.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>8ZR-FXE INVERTER WITH CONVERTER>REMOVAL

NOTICE:

Make sure that no foreign matter, water, etc., enters the inverter with converter assembly.



c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
X1-1 (PE) - X3-2 (ACPE) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE COMPRESSOR WITH MOTOR ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>COMPRESSOR (for 8ZR-FXE)>REMOVAL


NG

REPLACE HV AIR CONDITIONING WIRE

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>8ZR-FXE INVERTER WITH CONVERTER>REMOVAL


6.INSPECT HV AIR CONDITIONING WIRE
CAUTION:

Be sure to wear insulated gloves.


a.

Disconnect the X1 compressor with motor assembly connector.


b.

Remove the HV air conditioning wire from the inverter with converter assembly.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>8ZR-FXE INVERTER WITH CONVERTER>REMOVAL

NOTICE:

Make sure that no foreign matter, water, etc., enters the inverter with converter assembly.



c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
X1-2 (PB) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE COMPRESSOR WITH MOTOR ASSEMBLY AND HV AIR CONDITIONING WIRE
Compressor with motor assembly:
·

Click hereVehicle Interior>HEATING / AIR CONDITIONING>COMPRESSOR (for 8ZR-FXE)>REMOVAL


HV air conditioning wire:
·

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>8ZR-FXE INVERTER WITH CONVERTER>REMOVAL



NG

REPLACE HV AIR CONDITIONING WIRE

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>8ZR-FXE INVERTER WITH CONVERTER>REMOVAL


7.CHECK FOR DTC
a.

Disconnect the A148 battery state sensor assembly connector.


b.

Check for DTCs.

Body Electrical > Air Conditioner > Trouble Codes
50001 450

Result:
Result Proceed to
B149887 is not output A
B149887 is output B



A

REPLACE BATTERY STATE SENSOR ASSEMBLY

Click herePower Source / Network>8ZR-FXE (BATTERY / CHARGING)>BATTERY CURRENT SENSOR>REMOVAL


B

8.CHECK FOR DTC (HYBRID CONTROL)
8.CHECK FOR DTC (HYBRID CONTROL)
a.

Connect the A148 battery state sensor assembly connector.


b.

Disconnect the C96 compressor with motor assembly connector.


c.

Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes
50001 397

Result:
Result Proceed to
P058A01 and P162B87 are not output A
P058A01 or P162B87 is output B



A

REPLACE COMPRESSOR WITH MOTOR ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>COMPRESSOR (for 8ZR-FXE)>REMOVAL


B

9.CHECK HARNESS AND CONNECTOR (COMPRESSOR WITH MOTOR ASSEMBLY - HYBRID VEHICLE CONTROL ECU)
9.CHECK HARNESS AND CONNECTOR (COMPRESSOR WITH MOTOR ASSEMBLY - HYBRID VEHICLE CONTROL ECU)
a.

Disconnect the A147 hybrid vehicle control ECU connector.


b.

Disconnect the C96 compressor with motor assembly connector.


c.

Disconnect the A148 battery state sensor assembly connector.


d.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A147-16 (LIN3) - C96-3 (DOUT) Always Below 1 Ω
A147-16 (LIN3) - A148-2 (LIN) Always Below 1 Ω
A147-16 (LIN3) - Other terminals and body ground Always 10 kΩ or higher
C96-3 (DOUT) - Other terminals and body ground Always 10 kΩ or higher
A148-2 (LIN) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE HYBRID VEHICLE CONTROL ECU

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID VEHICLE CONTROL ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR