DTC Logic
DTC DETECTION LOGIC
DTC | Trouble diagnosis name | DTC detection condition | Possible causes |
P0976 | Shift Solenoid B Control Circuit Low | The following diagnosis conditions
are met, and the TCM low
clutch solenoid valve current
monitor reading is 200 mA or
less continuously for 0.5 seconds
or more. - Diagnosis condition - Solenoid valve output current: 750 mA or more - GND short circuit diagnosis occurs in the solenoid valve drive circuit. - TCM power supply voltage: 10 V < TCM power supply voltage < 16 V |
- Harness or connector
(Short circuit to ground in the
low clutch solenoid valve circuit) - Low clutch solenoid valve |
DTC REPRODUCTION PROCEDURE
CAUTION: Be careful of the driving speed.
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
Selector lever : D position
Gear : 1GR, 2GR, 3GR
Vehicle speed : 5 km/h (4 MPH) or more
3. Stop the vehicle.
4. Check the first trip DTC.
Is "P0976" detected?
YES >> Go to TM "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK CIRCUIT BETWEEN TCM AND A/T UNIT
Is the check result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CHECK LOW CLUTCH SOLENOID VALVE
Check the low clutch solenoid valve. Refer to TM, "Component Inspection (Low Clutch Solenoid Valve)".
Is the check result normal?
YES >> Check intermittent incident. Refer to GI, "Intermittent Incident".
NO >> Repair or replace the malfunctioning parts.
Component Inspection (Low Clutch Solenoid Valve)
1.CHECK LOW CLUTCH SOLENOID VALVE
Check the resistance between the A/T unit connector and ground.
Is the check result normal?
YES >> INSPECTION END
NO >> There is a malfunction of the low clutch solenoid valve. Replace the transaxle assembly. Refer to TM, "Removal and Installation".