LESSON 5: DIAGNOSIS
OBJECTIVE:
The student will safely and accurately diagnose a Ranger EV concern.
DIRECTIONS: Go to the workstation as directed by the instructor. Read the repair order on the vehicle and
isolate the cause of the concern.
1. What customer concern is listed on this repair order? ___________________________________________
______________________________________________________________________________________
2. Perform the diagnostic test steps required to locate the cause of the concern. List the steps you perform and
their results below. NOTE: The number of rows in the table does not indicate the number of steps to
perform. _______________________________________________________________________________
______________________________________________________________________________________
DIAGNOSTIC TEST STEP
100-07
AUXILIARY CONTACTOR
RELAY CONTROL 414-03
A1
A2
A3
A6
A14
A15
A18
A19
A20
A21
A22
A23
3. What was the cause of the concern? _________________________________________________________
______________________________________________________________________________________
5-44
ACTIVITY 12 – DIAGNOSIS – WORKSHEET R
STUDENT ANSWER SHEET
END OF WORKSHEET R
RESULT
IAA DTC C1862
SYMPTOM CHART
NO
YES
NO FAULT EXISTS
NO FAULT EXISTS
NO
YES
YES
YES
YES
YES
YES
YES REPLACE FUSE
1998 Ranger EV New Model Training