P0ADC

HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM: P0ADC-226: Hybrid Battery Positive Contactor Control Circuit High
P0ADC-226 - Hybrid Battery Positive Contactor Control Circuit High

DESCRIPTION

Refer to the description for DTC P0AE6-225 P0AE6.

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0AE6-225 P0AE6.

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. READ VALUE USING TECHSTREAM (SMRB STATUS)

(a) Connect the Techstream to the DLC3.

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

(c) Enter the following menus: Powertrain / Hybrid Control / Data List / SMRB Status.

(d) Read the Data List.

OK:

(e) Turn the power switch off.

NG -- CHECK HARNESS AND CONNECTOR (SMRB VOLTAGE)
OK -- Continue to next step.

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

(a) Check the connector connections and contact pressure of the relevant terminals for the power management control ECU connectors Electronic Circuit Inspection Procedure.

OK:

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

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

3. CHECK CONNECTOR CONNECTION CONDITION (HYBRID BATTERY JUNCTION BLOCK CONNECTOR)

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) Remove the battery cover sub-assembly Components.

(c) Check the connector connections and contact pressure of the relevant terminals for the hybrid battery junction block assembly connector Electronic Circuit Inspection Procedure.

OK:

The connector is connected securely and there are no contact pressure problems.

(d) Install the battery cover sub-assembly Components.

NG -- CONNECT SECURELY

OK -- CHECK FOR INTERMITTENT PROBLEMS Check for Intermittent Problems

4. CHECK HARNESS AND CONNECTOR (SMRB VOLTAGE)

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

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

Standard Voltage:

Text in Illustration

(c) Turn the power switch off.

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

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

(a) Check the connector connections and contact pressure of the relevant terminals for the power management control ECU connectors Electronic Circuit Inspection Procedure.

OK:

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

NG -- CONNECT SECURELY

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Components

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

(a) Disconnect connector F97 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 connector.

NG -- CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - HYBRID BATTERY JUNCTION BLOCK)
OK -- Continue to next step.

7. CHECK HARNESS AND CONNECTOR (SHORT TO POWER SUPPLY WIRES)

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) Remove the IGCT No. 3 fuse from the engine room relay block No. 2.

Text in Illustration

(d) Remove the ECU IG2 fuse from the instrument panel junction block assembly.

Text in Illustration

(e) Remove the battery cover sub-assembly Components.

(f) Disconnect connector z34 from the hybrid battery junction block assembly.

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

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

Standard Resistance:

Text in Illustration

(i) Connect the power management control ECU connectors.

(j) Connect the hybrid battery junction block assembly connector.

(k) Install the battery cover sub-assembly Components.

(l) Install the ECU IG2 fuse to the instrument panel junction block assembly.

(m) Install the AM2 fuse to the engine room junction block assembly.

(n) Install the IGCT No. 3 fuse to the engine room relay block No. 2.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Components

8. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - HYBRID BATTERY JUNCTION BLOCK)

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) Remove the battery cover sub-assembly Components.

(c) Disconnect connector z34 from the hybrid battery junction block assembly.

(d) Disconnect connector F97 from the power management control ECU.

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

Text in Illustration

Standard Resistance (Check for Open):

Standard Resistance (Check for Short):

(f) Connect the power management control ECU connector.

(g) Connect the hybrid battery junction block assembly connector.

(h) Install the battery cover sub-assembly Components.

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

9. CHECK HARNESS AND CONNECTOR (HYBRID BATTERY JUNCTION BLOCK - BODY GROUND)

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) Remove the battery cover sub-assembly Components.

(c) Disconnect connector z34 from the hybrid battery junction block assembly.

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

Standard Resistance:

Text in Illustration

(e) Connect the hybrid battery junction block assembly connector.

(f) Install the battery cover sub-assembly Components.

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

10. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRB)

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) Remove the hybrid battery junction block assembly Components.

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

Standard Resistance:

Text in Illustration

(d) Install the hybrid battery junction block assembly Components.

NG -- REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY Components

OK -- CHECK FOR INTERMITTENT PROBLEMS Check for Intermittent Problems