Diagnostic Technician – Roles & Responsibilities

Tata Motors Car Dealership / Service Workshop

Department: Service
Designation: Diagnostic Technician
Reports To: Service Manager / Workshop Manager / Technical Head

Key Responsibilities

- Vehicle Diagnosis
- Diagnose complex mechanical, electrical and electronic vehicle complaints.
- Identify the root cause of customer complaints using systematic diagnostic procedures.
- Perform detailed vehicle inspections based on the Job Card.
- Conduct road tests where required to confirm the concern.
- Diagnostic Scanner & Equipment
- Operate manufacturer-approved diagnostic scan tools and workshop equipment.
- Read, interpret and clear Diagnostic Trouble Codes (DTCs).
- Analyse live data, sensor values and system parameters.
- Perform ECU/system diagnosis and programming where authorized.
- Maintain and properly handle diagnostic tools and equipment.
- Electrical & Electronic Systems
- Diagnose faults in ECU, sensors, actuators, wiring and communication systems.
- Troubleshoot CAN communication and electrical circuit-related issues.
- Diagnose problems related to ABS, airbags, BCM, instrument cluster, infotainment and other electronic systems.
- Perform battery, charging and starting-system diagnosis.
- Advanced Fault Finding
- Handle difficult and repeat-repair cases.
- Investigate intermittent electrical and electronic faults.
- Identify root causes instead of replacing components unnecessarily.
- Support technicians in resolving technically complex repair jobs.
- Tata Motors Technical Standards




- Follow Tata Motors technical manuals, diagnostic procedures and repair guidelines.
- Follow manufacturer-recommended troubleshooting flowcharts.
- Keep updated on new vehicle technologies, technical circulars and service campaigns.
- Maintain required technical standards for ICE, EV and hybrid-related systems, where applicable.
- Technical Support to Workshop
- Provide technical support to Service Advisors and Technicians.
- Guide technicians during complex diagnosis and repairs.
- Assist in identifying the correct repair procedure and required parts.
- Escalate unresolved technical issues to the Technical/Workshop Manager.
- Warranty & Technical Documentation
- Support warranty diagnosis and technical documentation.
- Record diagnostic findings accurately in the Job Card/DMS.
- Document DTCs, test results, root cause and corrective action.
- Support technical reports for repeat complaints and major repairs.
- Quality Control
- Verify that the root cause has been properly rectified.
- Conduct post-repair diagnosis and system checks.
- Ensure DTCs are cleared only after the underlying fault is rectified.
- Conduct final testing/road testing where required.
- Customer Complaint Support
- Understand technical complaints communicated through the Service Advisor.
- Assist in explaining technical findings in straightforward terms.
- Support resolution of customer complaints and repeat visits.

Pay: ₹25,000.00 - ₹50,000.00 per month

Benefits:

- Cell phone reimbursement
- Food provided
- Provident Fund

Work Location: In person

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