Subaru Crosstrek Service Manual: Dtc u0100 lost communication with ecm/pcm a

Subaru Crosstrek Service Manual / Hvac system (auto a/c) (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0100 lost communication with ecm/pcm a

HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC U0100 LOST COMMUNICATION WITH ECM/PCM “A”

Detected when CAN data from the engine control module (ECM) does not arrive.

NOTE:

Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE">

Diagnostic procedure with diagnostic trouble code (dtc)

...

Dtc u0073 control module communication bus off

HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0073 CONTROL MODULE COMMUNICATION BUS OFFDetected when CAN line abnormality is detected.NOTE:Perfo ...

Other materials:

Specification
TELEMATICS SYSTEM (DIAGNOSTICS) > Control Module I/O SignalSPECIFICATION1. DATA COMMUNICATION MODULE (DCM)Terminal No.ContentMeasuring conditionStandardA1 — — — A2 — — — A3LED GREEN — — A4 ←> Chassis groundi-buttoni-button OFF > ON1.6 k? or more > less than 1 ?A ...

Removal
DRIVE SHAFT SYSTEM > Rear AxleREMOVAL1. Disconnect the ground cable from battery. NOTE">2. Lift up the vehicle, and then remove the rear wheels.3. Remove the axle nut.CAUTION:Do not loosen the axle nut while the rear axle is loaded. Doing so may damage the hub unit bearing.(1) Lift the c ...

Removal
COOLING(H4DO) > RadiatorREMOVALCAUTION:The radiator is pressurized when the engine and radiator are hot. Wait until engine and radiator cool down before working on the radiator.1. Disconnect the ground cable from battery. NOTE">2. Remove the V-belt covers.3. Remove the grille bracket.NOT ...