| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001OBCN |
| Model Year Start: 2020 | Model: RAV4 HV | Prod Date Range: [06/2020 - ] |
| Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): P06881F; ECM/PCM Power Relay Sense Circuit Intermittent; 2020 - 2024 MY RAV4 HV [06/2020 - ] | ||
|
DTC |
P06881F |
ECM/PCM Power Relay Sense Circuit Intermittent |
DESCRIPTION
This DTC indicates that the hybrid vehicle control ECU assembly detected an instantaneous interruption in +B power source voltage.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
|---|---|---|---|---|---|
|
P06881F |
ECM/PCM Power Relay Sense Circuit Intermittent |
When the ignition switch is ON (READY), the hybrid vehicle control ECU assembly is reset due to an instantaneous interruption of power source. (1 trip detection logic) |
|
Does not come on |
Master Warning: Comes on |
CONFIRMATION DRIVING PATTERN
HINT:
After repair has been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
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![2020 - 2024 MY RAV4 HV [06/2020 - ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): UTILITY](/t3Portal/stylegraphics/info.gif)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for 2 minutes or more.
- Turn the ignition switch to ON and turn the Techstream on.
-
Turn the ignition switch to ON (READY) and wait for 30 seconds or more.
(If the DTC is not output, drive the vehicle on urban roads according to the freeze frame data item "Vehicle Speed" for approximately 5 minutes.)
- Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
-
Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE, perform driving pattern again.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK AUXILIARY BATTERY TERMINAL |
(a) Confirm whether the auxiliary battery terminals have been disconnected recently.
|
Result |
Proceed to |
|---|---|
|
Terminals have been disconnected. |
A |
|
Terminals have not been disconnected. |
B |
| B |
|
|
|
2. |
CONFIRM MASTER WARNING |
(a) Turn the ignition switch to ON (READY) from off.
(b) Confirm that the master warning illuminates.
Result |
Proceed to |
|---|---|
|
Master warning illuminates. |
A |
|
Master warning does not illuminate. |
B |
NOTICE:
DTC P06881F may be stored after disconnecting and reconnecting the auxiliary battery terminals. If this happens, the DTC will not be output if the ignition switch is turned off and then ON (READY) again. In this case, clear the DTCs to complete the inspection.
(c) Turn the ignition switch off.
| B |
|
END |
|
|
3. |
CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
(d) Read and record the DTCs and freeze frame data.
Powertrain > Hybrid Control > Trouble Codes
(e) Clear the DTCs and freeze frame data.
Powertrain > Hybrid Control > Clear DTCs
(f) Turn the ignition switch off and wait for 2 minutes or more.
|
|
4. |
CHECK DTC OUTPUT (HYBRID CONTROL) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
(d) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes
Result |
Proceed to |
|---|---|
|
DTC P06881F is output again. |
A |
|
DTCs other than P06881F are also output. |
B |
(e) Turn the ignition switch off.
| B |
|
GO TO DTC CHART (HYBRID CONTROL SYSTEM)
|
|
|
5. |
CHECK AUXILIARY BATTERY TERMINAL (CONTACT PROBLEM) |
(a) Check the connection of the auxiliary battery terminal.
OK:
The terminal is connected securely and there is no contact problem.
| NG |
|
CONNECT SECURELY |
|
|
6. |
CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU ASSEMBLY CONNECTOR) |
Click here
| NG |
|
CONNECT SECURELY |
|
|
7. |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - IGCT RELAY) |
(a) Remove the IGCT relay from the No. 3 relay block and junction block assembly.
(b) Disconnect the A29 and A30 hybrid vehicle control ECU assembly connectors.
(c) Measure the resistance according to the value(s) in the table below.
|
*1 |
No. 3 Relay Block and Junction Block Assembly |
*2 |
IGCT Relay |
|
*a |
Front view of wire harness connector (to Hybrid Vehicle Control ECU Assembly) |
- |
- |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A29-11 (+B1) - 5 (IGCT relay) |
Ignition switch off |
Below 1 Ω |
|
A30-1 (+B2) - 5 (IGCT relay) |
Ignition switch off |
Below 1 Ω |
(d) Reconnect the A29 and A30 hybrid vehicle control ECU assembly connectors.
(e) Reinstall the IGCT relay.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
8. |
CHECK FOR INTERMITTENT PROBLEMS |
(a) Check for intermittent problems.
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(1) Check the connection and terminal contact pressure of the connectors and wire harnesses between the hybrid vehicle control ECU assembly and the No. 3 relay block and junction block assembly.
(2) When the ignition switch is ON (READY), jiggle the connectors and wire harnesses between the hybrid vehicle control ECU assembly and the No. 3 relay block and junction block assembly.
Result |
Proceed to |
|---|---|
|
Problem symptom does not recur. |
A |
|
Problem symptom recurs. |
B |
| A |
|
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY
|
| B |
|
REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA |
|
|