Hybrid Control System

HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM: P0340-886: Camshaft Position Sensor "A" Circuit

DESCRIPTION

The power management control ECU (HV CPU) compares the engine speed sent from the ECM via CAN communication and the engine speed that is indicated by pulses sent from the ECM. If the pulse input is not normal, the power management control ECU (HV CPU) sets this DTC.





WIRING DIAGRAM





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 for 10 minutes, check the voltage at the terminals in 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 DTC OUTPUT (HV)

(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 if DTCs are output.

Result:





B -- CHECK HARNESS AND CONNECTOR (ECM - POWER MANAGEMENT CONTROL ECU, INVERTER WITH CONVERTER)
A -- Continue to next step.

2. CHECK CONNECTOR CONNECTION CONDITION (ECM CONNECTOR)

(a) Check the connections of the ECM connectors.





OK:

The connectors are connected securely and there are no contact problems.

NG -- CONNECT SECURELY
OK -- Continue to next step.

3. CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR)

(a) Check the connections of the power management control ECU connectors.





OK:

The connectors are connected securely and there are no contact problems.

NG -- CONNECT SECURELY
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU)

(a) Disconnect the A76 connector from the ECM.

(b) Turn the power switch on (IG).

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





Standard Voltage:





Text in Illustration





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

(d) Turn the power switch off.

(e) Connect the ECM connector.

NG -- CHECK HARNESS AND CONNECTOR (ECM - POWER MANAGEMENT CONTROL ECU)
OK -- Continue to next step.

5. CHECK ECM

(a) Remove the ECM.

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





Standard Resistance:





Text in Illustration





(c) Install the ECM.

NG -- REPLACE ECM

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Components

6. CHECK HARNESS AND CONNECTOR (ECM - POWER MANAGEMENT CONTROL ECU)

(a) Disconnect the A76 connector from the ECM.

(b) Disconnect the A80 connector from the power management control ECU.

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





Standard Resistance:





Text in Illustration





(d) Connect the ECM connector.

(e) Connect the power management control ECU connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Components

7. CHECK HARNESS AND CONNECTOR (ECM - POWER MANAGEMENT CONTROL ECU, INVERTER WITH CONVERTER)

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Disconnect theA76 connector from the ECM.

(c) Disconnect the A80 connector from the power management control ECU.

(d) Disconnect the A79 connector from the inverter with converter assembly.

(e) Turn the power switch on (IG).

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





Standard Voltage:





Text in Illustration





NOTICE:
Turning the power switch on (IG) with the inverter with converter assembly connector, power management control ECU and ECM connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

(g) Turn the power switch off.

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

Standard Resistance:





(i) Connect the ECM connector.

(j) Connect the power management control ECU connector.

(k) Connect the inverter with converter assembly connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

8. CHECK POWER MANAGEMENT CONTROL ECU

(a) Disconnect all the connectors from the power management control ECU.

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





Standard Resistance:





Text in Illustration





(c) Connect the power management control ECU connectors.

NG -- REPLACE POWER MANAGEMENT CONTROL ECU Components
OK -- Continue to next step.

9. CHECK INVERTER WITH CONVERTER ASSEMBLY

CAUTION:
Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Disconnect the A79 connector from the inverter with converter assembly.

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





Standard Resistance:





Text in Illustration





(d) Connect the inverter with converter assembly connector.

NG -- REPLACE INVERTER WITH CONVERTER ASSEMBLY Components

OK -- REPLACE ECM