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Mid-East Nebraska | 5160
HBI-HX-1895 SEP 22 1989 71E AND/OR 72E ERROR CODE BEING DISPLAYED ON DIGITAL TACHOMETER / 9500 AND 9600 MAXIMIZERS
Apr 5 2002
ERROR CODE 71E IS BEING DISPLAYED ON DIGITAL TACHOMETER.
CTM 68 DIAGNOSTIC PROCEDURE LEADS TO A FAULTY ECU. THE PROBLEM IS A
VOLTAGE BEING FED TO THE TACHOMETER THROUGH WIRE NO. 132 OR A
DEFECTIVE TACHOMETER.
ADDITIONAL DIAGNOSIS SHOULD INCLUDE DISCONNECTING J1 CONNECTOR AT THE
ECU AND TURNING ON THE KEY. ERROR CODE 72E SHOULD BE DISPLAYED. IF 71E
IS STILL BEING DISPLAYED THE PROBLEM IS NOT IN THE ECU. PROBLEM IS A
UNWANTED VOLTAGE BEING FED IN THROUGH WIRE 132. CHECK THIS WIRE FOR A
SHORT BY EXTRACTING WIRE 132 AT THE CONNECTOR ON THE BACK OF THE TACH.
IF TACH STILL HAS A 71E THEN REPLACE TACH. IF TACH HAS A 72E THEN TEST
FOR A SHORT ON WIRE 132 TO PIN POINT WHAT HARNESS HAS THE SHORT. REFER
TO TM-1402 SECTION 240 AND THE GROUP COVERING BOSCH OR NIPPONDENSO
ENGINE CONTROL UNITS FOR WIRING DIAGRAMS.
9500SH, CTS, CTS II, 9510, 9510SH, 9610, 9500, 9600
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jd 9600 won't start error 71E
