DESCRIPTION Auxiliary
battery power is supplied to the BATT terminal of the hybrid vehicle
control ECU in order to store DTCs and freeze frame data. Even if the
power switch is turned off, back-up power is supplied. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P056014 System Voltage (BATT) Circuit Short to Ground or Open Malfunction in the hybrid vehicle control ECU back-up power source circuit (1 trip detection logic) Comes on Master Warning Light: Comes on MONITOR DESCRIPTION If
a period of time has elapsed with a low voltage at the BATT terminal of
the hybrid vehicle control ECU, the hybrid vehicle control ECU will
determine that a malfunction has occurred in the back-up power supply
system, and it will store a DTC. The MIL will illuminate the next time
the power switch on (IG). MONITOR STRATEGY Related DTCs P0562 (INF P056014): System voltage range check (Low voltage) Required sensors/components Main: Back-up power source circuit Sub: Hybrid vehicle control ECU Frequency of operation Continuous Duration TMC's intellectual property MIL operation Immediately 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 Auxiliary battery voltage Between 9 and 14 V CONFIRMATION DRIVING PATTERN HINT: Click here Click here HINT: [*1] : Normal judgment procedure. The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs. HINT: WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: After
turning the power 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. Click here PROCEDURE 1. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR) (a)
Check the connector connections and contact pressure of the relevant
terminals for the hybrid vehicle control ECU connectors. Click here
OK: The connectors are connected securely and there are no contact pressure problems. CONNECT SECURELY 2. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF HYBRID VEHICLE CONTROL ECU) (a) Turn the power switch off. (b) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection Condition Specified Condition G47-3 (BATT) - G46-6 (E1) Power switch off 11 to 14 V *a Component with harness connected (Hybrid Vehicle Control ECU) REPLACE HYBRID VEHICLE CONTROL ECU 3. CHECK FUSE (ECU-B NO. 4) (a) Remove the ECU-B NO. 4 fuse from the fusible link block assembly. *1 Fusible Link Block Assembly *2 ECU-B NO. 4 Fuse (b) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition ECU-B NO. 4 fuse Always Below 1 Ω (c) Reinstall the ECU-B NO. 4 fuse. REPLACE FUSE (ECU-B NO. 4) 4. INSPECT FUSIBLE LINK BLOCK ASSEMBLY (a) Disconnect the cable to the negative (-) auxiliary battery terminal. (b) Disconnect the cable to the positive (+) auxiliary battery terminal. (c) Remove the fusible link block assembly. *1 Fusible Link Block Assembly (d) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition A-1 (Positive (+) auxiliary battery terminal) - 7C-2 Always Below 1 Ω (e) Reinstall the fusible link block assembly. (f) Reconnect the cable to the negative (-) auxiliary battery terminal. (g) Reconnect the cable to the positive (+) auxiliary battery terminal. REPLACE FUSIBLE LINK BLOCK ASSEMBLY 5. CHECK HARNESS AND CONNECTOR (FUSIBLE LINK BLOCK ASSEMBLY - HYBRID VEHICLE CONTROL ECU) (a) Remove the ECU-B NO. 4 fuse from the fusible link block assembly. (b) Disconnect the G47 hybrid vehicle control ECU connector. (c) Measure the resistance according to the value(s) in the table below. *1 Fusible Link Block Assembly *2 ECU-B NO. 4 Fuse Holder *a Rear view of wire harness connector (to Hybrid Vehicle Control ECU) - - Standard Resistance (Check for Open): Tester Connection Condition Specified Condition 2 (ECU-B NO. 4 fuse holder) - G47-3 (BATT) Power switch off Below 1 Ω Standard Resistance (Check for Short): Tester Connection Condition Specified Condition 2 (ECU-B NO. 4 fuse) or G47-3 (BATT) - Body ground and other terminals Power switch off 10 kΩ or higher (d) Reconnect the G47 hybrid vehicle control ECU connector. (e) Reinstall the ECU-B NO. 4 fuse. REPLACE HYBRID VEHICLE CONTROL ECU REPAIR OR REPLACE HARNESS OR CONNECTOR DESCRIPTION The hybrid
vehicle control ECU monitors its internal operation and will store these
DTCs when it detects an internal malfunction. If these DTCs are output,
replace the hybrid vehicle control ECU. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P060647 Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure ECU internal malfunction (HV-CPU error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P060687 Hybrid/EV Powertrain Control Module Processor to Monitoring Processor Missing Message ECU internal malfunction (Communication error (main to sub CPU)) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P060A29 Hybrid/EV Powertrain Control Module Monitoring Processor Signal Invalid ECU internal malfunction (Sub CPU circuit error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P060A44 Hybrid/EV Powertrain Control Module Monitoring Processor Data Memory Failure ECU internal malfunction (Sub CPU RAM error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P060A45 Hybrid/EV Powertrain Control Module Monitoring Processor Program Memory Failure ECU internal malfunction (Sub CPU ROM error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P060A47 Hybrid/EV Powertrain Control Module Monitoring Processor Watchdog / Safety MCU Failure ECU internal malfunction (Sub CPU WDC error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P060A49 Hybrid/EV Powertrain Control Module Monitoring Processor Internal Electronic Failure ECU internal malfunction (Sub CPU calculation check error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P060A87 Hybrid/EV Powertrain Control Module Processor from Monitoring Processor Missing Message ECU internal malfunction (Communication error (sub to main CPU)) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P060B1C Hybrid/EV Powertrain Control Module A/D Processing Voltage Out of Range ECU internal malfunction (AD conversion error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P060B49 Hybrid/EV Powertrain Control Module A/D Processing Internal Electronic Failure ECU internal malfunction (AD timeout error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P060B71 Hybrid/EV Powertrain Control Module A/D Processing Actuator Stuck ECU internal malfunction (AD multiplexer error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P1C9E9F Hybrid/EV System Reset Stuck Off ECU internal malfunction (Primary check error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P1CE31C Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Voltage Out of Range ECU internal malfunction (Sub CPU AD conversion error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P1CE349 Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Internal Electronic Failure ECU internal malfunction (Sub CPU AD timeout error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on P1CE371 Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Actuator Stuck ECU internal malfunction (Sub CPU AD multiplexer error) (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on MONITOR DESCRIPTION The
hybrid vehicle control ECU performs diagnostic tests to verify proper
operation of internal ECU systems. If there is an internal ECU
malfunction, the hybrid vehicle control ECU will illuminate the MIL and
store a DTC. MONITOR STRATEGY Related DTCs P0606 (INF P060647): Control module processor performance P0606 (INF P060687): Control module processor verify communication P060A (INF P060A29/P060A44/P060A45/P060A47/P060A49): Internal control module monitoring processor performance P060A (INF P060A87): Internal control module monitoring processor verify communication P060B (INF P060B1C/P060B49/P060B71): Internal control module A/D processing performance P1C9E (INF P1C9E9F): Control module processor restart P1CE3 (INF P1CE31C/P1CE349/P1CE371): Internal control module monitoring processor A/D processing performance Required sensors/components Hybrid vehicle control ECU Frequency of operation Continuous Duration TMC's intellectual property MIL operation Immediately / 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 P0606 (INF P060647/P060687) is not detected DTC P060A (INF P060A29/P060A44/P060A45/P060A47/P060A49/P060A87) is not detected DTC P060B (INF P060B1C/P060B49/P060B71) is not detected DTC P1C9E (INF P1C9E9F) is not detected DTC P1CE3 (INF P1CE31C/P1CE349/P1CE371) is not detected CONFIRMATION DRIVING PATTERN HINT: Click here Click here HINT: [*1] : Normal judgment procedure. The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs. HINT: PROCEDURE 1. REPLACE HYBRID VEHICLE CONTROL ECU Click here END DTC SUMMARY MALFUNCTION DESCRIPTION The main CPU and sub CPU of the Hybrid vehicle control ECU monitor each other. The cause of this malfunction may be the following: DESCRIPTION The
hybrid vehicle control ECU monitors its internal operation and will
store these DTCs when it detects an internal malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P060694 Hybrid/EV Powertrain Control Module Processor Unexpected Operation The main CPU value received by the sub CPU of the hybrid vehicle control ECU exceeds the threshold for a certain period of time. (1 trip detection logic) Hybrid vehicle control ECU Comes on Master Warning Light: Comes on MONITOR DESCRIPTION The
hybrid vehicle control ECU monitors its internal operation. If the
internal operation is malfunctioning, the hybrid vehicle control ECU
illuminates the MIL and stores a DTC. MONITOR STRATEGY Related DTCs P0606 (INF P060694): Control module processor Required sensors/components Hybrid vehicle control ECU Frequency of operation Continuous 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 P0606 (INF P060694) is not detected CONFIRMATION DRIVING PATTERN HINT: Click here Click here HINT: [*1] : Normal judgment procedure. The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs. HINT: 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. Result Proceed to P060694 only is output. A DTCs except P060694 are output. B (e) Turn the power switch off. REPLACE HYBRID VEHICLE CONTROL ECU GO TO DTC CHART (HYBRID CONTROL SYSTEM) System Voltage (BATT) Circuit Short to Ground or Open (P056014)
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OK
OK
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OK
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OK
OK
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Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure (P060647,...,P1CE371)
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Hybrid/EV Powertrain Control Module Processor Unexpected Operation (P060694)
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Toyota Avalon (XX50) 2019-2022 Owners Manual > Maintenance: General maintenance
Listed below are the general maintenance items that should be performed at the intervals specified in the "Owner's Warranty Information Booklet" or "Owner's Manual Supplement/Scheduled Maintenance Guide". It is recommended that any problem you notice should be brought to the attention of your Toyot ...
