The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component
units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document,are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any
person other than the trained personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd.,will amount to unauthorized use and shall be liable for penalty/prosecution
© 2013 Mahindra & Mahindra Ltd.
MAN-00222
APRIL 2013/Rev1
WIRING MANUAL
04022013
GOOD ELECTRICAL/ELECTRONIC TROUBLESHOOTING PROCESS
When troubleshooting any problem related to electrical/electronic system, follow the 5-step
process:-
SETP 1 – Verify the customer complaint
•
Turn on all the component/function in the problem circuit to check accuracy of the
customer complaint.
•
Replicate the customer complaint
•
Note down the symptoms
•
Do not begin disassembly or testing unless you have narrowed down the probable
causes.
STEP 2 – Read and analyze the wiring diagrams
•
Locate the specific circuit diagram of the problem circuit
•
Understand how the circuit is supposed to work by tracing the circuit from power
source through components on to ground.
•
Check other circuits which share components/fuse/ground/switch with this circuit.
•
Isolate the circuit/components with problem.
STEP 3 – Inspect circuit/components with problem isolated
•
Make a circuit test to check the diagnosis
•
Narrow down the probable causes using troubleshooting charts/diagnosis charts
STEP 4 – Repair the problem
•
Make necessary repairs as authorized
STEP 5 – Re-check the circuit
•
Repeat the system check to ensure that the problem is eliminated
•
Check related circuits
•
Ensure that the customer symptom is eliminated
4
