2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 411Get this manual
ELECTRIC SHIFT PROGRAM (ESPFE model) 4ECM Inspection Connect the handlebar switch and ECM connectorsCheck the ES system failure (the gear position indicator blinks) when turning the ignition switch from OFF to ONDoes the gear position indicator blink? NO YESNo problem (temporary failure)- Replace the ECM with new one and troubleshoot again
Problem Code 3, 8, 9: Angle Sensor System 1ECM and Angle Sensor Connection Inspection Remove the right inner fender (page 3-7)Remove the front fender (page 3-9)Check the connections of the ECM and angle sensor connectorsAre all connections good? NO YESConnect the ECM andor angle sensor connector securely- GO TO STEP 2
2Angle Sensor Inspection at ECM Connector Disconnect the throttle position sensor 3P connector (page 21-19)Disconnect the ECM 33P black connectorMeasure the resistance between the Blackred and Greenblue wire terminals of the wire harness side connector using the special toolTOOL: Pin probe (Male) 07ZAJ-RDJA110 STANDARD:kii (20C 68F) Is the resistance within the specified range? NO YESGO TO STEP 4- GO TO STEP 3Greenblue ECM 33P CONNECTOR (Viewed from the terminal side) Blackred r-i