Dtc P0985 Shift Solenoid E Control Circuit Low (Shift Solenoid Valve Sr)
DESCRIPTION
MONITOR DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT TRANSMISSION WIRE (SR)
CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
INSPECT SHIFT SOLENOID VALVE (SR)
DTC P0985 Shift Solenoid "E" Control Circuit Low (Shift Solenoid Valve SR) |
DTC P0986 Shift Solenoid "E" Control Circuit High (Shift Solenoid Valve SR) |
DESCRIPTION
Shifting from 1st to 5th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, SL3, S4 and SR which are controlled by the ECM. If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated smoothly (Fail safe function).DTC No.
| DTC Detection Condition
| Trouble Area
|
P0985
| ECM detects short in solenoid valve SR circuit 2 times when solenoid valve SR is operated (1-trip detection logic)
| - Short in shift solenoid valve SR circuit
- Shift solenoid valve SR
- ECM
|
P0986
| ECM detects open in solenoid valve SR circuit 2 times when solenoid valve SR is not operated (1-trip detection logic)
| - Open in shift solenoid valve SR circuit
- Shift solenoid valve SR
- ECM
|
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves "ON/OFF". When there is an open or short circuit in any shift solenoid valve circuit, the ECM detects the problem and illuminates the MIL and stores the DTC. And the ECM performs the fail-safe function and turns the other normal shift solenoid valves "ON/OFF" (In case of an open or short circuit, the ECM stops sending current to the circuit.)(CAMRY_ACV40 RM000000O8L02PX.html).
WIRING DIAGRAM
INSPECTION PROCEDURE
1.INSPECT TRANSMISSION WIRE (SR) |
Disconnect the transmission wire connector from the transaxle.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Specified Condition 20°C (68°F)
|
9 - Body ground
| 11 to 15 Ω
|
2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) |
Connect the transmission connector to the transaxle.
Disconnect the connector from the ECM.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Specified Condition 20°C (68°F)
|
C24-80 (SR) - Body ground
| 11 to 15 Ω
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3.INSPECT SHIFT SOLENOID VALVE (SR) |
Remove the shift solenoid valve SR.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Specified Condition 20°C (68°F)
|
Solenoid Connector (SR) - Solenoid Body (SR)
| 11 to 15 Ω
|
Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.
- OK:
- The solenoid makes an operating sound.
| REPLACE SHIFT SOLENOID VALVE (SR) |
|
|
OK |
|
|
|
REPAIR OR REPLACE TRANSMISSION WIRE |
|