DTC Code | DTC Name |
---|---|
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 power 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 Light: Comes on |
CONFIRMATION DRIVING PATTERN
Tech Tips
After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Connect the GTS to the DLC3.
Turn the power switch on (IG) and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the power switch off and wait for 2 minutes or more.
Turn the power switch on (IG) and turn the GTS on.
Turn the power switch 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.
Tech Tips
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
*a | IGCT NO.1 |
*b | R/B RR NO.2 |
*c | Auxiliary Battery |
*d | Hybrid Vehicle Control ECU Assembly |
PROCEDURE
CHECK AUXILIARY BATTERY TERMINAL
Confirm whether the auxiliary battery terminals have been disconnected recently.
Result | ||||||
---|---|---|---|---|---|---|
|
B |
GO TO STEP 5 Click here |
A |
CONFIRM MASTER WARNING LIGHT
Turn the power switch on (READY) from off.
Confirm that the master warning light illuminates.
Result | ||||||
---|---|---|---|---|---|---|
|
Note
DTC P06881F may be stored after disconnecting and reconnecting the auxiliary battery terminals. If this happens, the DTC will not be output if the power switch is turned off and then on (READY) again. In this case, clear the DTCs to complete the inspection.
Turn the power switch off.
B |
END |
A |
CLEAR DTC
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Read and record the DTCs and freeze frame data.
Clear the DTCs and freeze frame data.
Turn the power switch off.
Result | ||
---|---|---|
|
NEXT |
CHECK DTC OUTPUT (HYBRID CONTROL)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Check for DTCs.
Result | ||||||
---|---|---|---|---|---|---|
|
Turn the power switch off.
B |
GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here |
A |
CHECK AUXILIARY BATTERY TERMINAL (CONTACT PROBLEM)
Check the connection of the auxiliary battery terminal.
OK |
---|
The terminal is connected securely and there is no contact problem. |
Result | |||
---|---|---|---|
|
NG |
CONNECT SECURELY |
OK |
CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU ASSEMBLY CONNECTOR)
Result | |||
---|---|---|---|
|
*A | for LHD |
*B | for RHD |
Check the connector connections and contact pressure of the relevant terminals for the hybrid vehicle control ECU assembly connectors.
OK |
---|
The connectors are connected securely and there are no contact pressure problems. |
Result | |||
---|---|---|---|
|
NG |
CONNECT SECURELY |
OK |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - IGCT NO.1 RELAY)
Remove the IGCT NO.1 relay from the No. 2 luggage room relay block.
Disconnect the G92 and G93 hybrid vehicle control ECU assembly connectors.
Measure the resistance according to the value(s) in the table below.
*1 | No. 2 Luggage Room Relay Block | *2 | IGCT NO.1 Relay |
*a | Rear view of wire harness connector (to Hybrid Vehicle Control ECU Assembly) |
- | - |
Standard Resistance | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Reconnect the G92 and G93 hybrid vehicle control ECU assembly connectors.
Install the IGCT NO.1 relay.
Result | |||
---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK FOR INTERMITTENT PROBLEMS
Check for intermittent problems.
Check the connection and terminal contact pressure of the connectors and wire harnesses between the hybrid vehicle control ECU assembly and the No. 2 luggage room relay block.
When the power switch is on (READY), jiggle the connectors and wire harnesses between the hybrid vehicle control ECU assembly and the No. 2 luggage room relay block.
Result | ||||||
---|---|---|---|---|---|---|
|
A |
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY Click here |
B |
REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA |