DTC B1A09 Jeep
Transmission Component Slipping
Transmission Component Slipping
Description
The monitor will run whenever this DTC is not present: None Turbine speed sensor circuit: Not circuit malfunction Output speed sensor circuit: Not circuit malfunction ATF temperature sensor circuit: Not circuit malfunction Shift solenoid valve S1 circuit: Not circuit malfunction Shift solenoid valve S2 circuit: Not circuit malfunction Shift solenoid valve S3 circuit: Not circuit malfunction Shift solenoid valve S4 circuit: Not circuit malfunction Shift solenoid valve SR circuit: Not circuit malfunction Shift solenoid valve SL1 circuit: Not circuit malfunction Shift solenoid valve SL2 circuit: Not circuit malfunction Shift solenoid valve SLT circuit: Not circuit malfunction ECT (Engine coolant temperature) sensor circuit: Not circuit malfunction KCS sensor circuit: Not circuit malfunction ETCS (Electric throttle control system): Not system down Transmission range: D ECT: 40°C (104°F) or more Spark advance from Max. retard timing by KCS control: 0°crankshaft angle or more Engine Starting ATF temperature 10°C (50°F) or more
Cause and Solution
Shift solenoid valve SLT remains open or closed Shift solenoid valve S1, S2, S3, S4 or SL2 remains open or closed Gear 6 incorrect ratio (sequence valve) or 1-2 shift valve is stuck Valve body is blocked Automatic transmission (clutch, brake, gear, etc. )
Video Guide
Diagnostic Info
- DTC Code: B1A09
- Brand: Jeep