|
|
REAR AXLE - Troubleshooting <AYC> 27B-13 Code No. 73 Directional control valve (left) system Probable cause This code is output when the directional control valve (left) control circuit is open- or short-circuited. D Defective directional control valve (left) D Defective harness or connector D Defective 4WD-ECU <Vehicles with ACD + AYC> NG Check and repair the harness between directional control valve (left) and body earth. OK Check the trouble symptom. OK Replace 4WD-ECU. NG Checktheharnessbetweendirectional control valve (left) and 4WD-ECU. NG Repair OK Check the trouble symptom. OK Check the following connectors: C-44, C-130*, C-134, F-24, F-25 NG Repair OK Measure at directional control valve (left) connector F-25. Disconnect the connector and measure at the directional control valve side. D Resistance between 1 and body earth OK: 2 Ω or less NG Check the following connectors: F-25, F-24 NG Repair Measure at directional control valve (left) connector F-25. Disconnect the connector and measure at the directional control valve side. D Resistance between 1 and 2 OK: 19 - 21 Ω or less NG Replace the hydraulic unit. (Refer to P27B-61.) *: L.H. drive vehicles <Vehicles with ACD> OK Check and repair the harness between 4WD-ECU and body earth. Measure at 4WD-ECU connector C-43. Disconnect the connector and measure at the harness side. D Resistance between 50 and body earth OK: 2 Ω or less NG Check the following connector: C-43 NG Repair OK Replace 4WD-ECU. OK Check the following connector: C-43 NG Repair NG Repair |