Transponder & CAN based Immobilizer (Continental) Part Replacement handling – Service Documentation TITLE : Immobilizer (Conti) Service Manual-Aria Eagle xxxx Date: 28-08-2015 Version: 0.1 Page: 9 of 25 Prepared : Amanulla Bugga Approved: Dinesh G Dodmane This specification is the exclusive property of Tata Motors Limited. Without their consent it may not be reproduced or given to third parties. The above specifications are subject to change and therefore suppliers are requested to refer the latest one. CONTROLLED COPY FOR RESTRICTED CIRCULATION 3. Diagnostic Troubleshooting Table for both EMS & ICU, with DTCs: 3.1. This is valid for Aria Eagle Diesel DCM3.7 EMS ECU Following chart has information (DTC’s under different operating conditions), which may occur on vehicle. No Scenario DTC codes Status lamp (“lock” symbol) Vehicle starting Remarks EMS IMMO IGN OFF IGN ON 1. CAN_H or CAN_L or both wire open circuit U0167 -31 U0028-13 Blink ON No NO_RESPONSE and CAN_MUTE error 2. CAN_H & CAN_L wires swapped U0167 -31 - Blink ON No CAN_OFF and CAN_MUTE error 3. CAN_H / CAN_L shorted to GND or Vbatt, OR Shorted to each other U0167 -31 U002888 Blink ON No CAN_OFF and CAN_MUTE error 4. No battery supply to ICU - -- OFF OFF Yes Permanent error status 5. No Ignition supply to ICU U0167 -31 U3007-14 Blink Blink Yes "NO_RESPONSE” from Immo error in EMS. 6. No Ground connection to ICU U1016 7-31 -- OFF OFF No "NO_RESPONSE” from Immo error in EMS. 7. Different AES key code in EMS & ICU P063354 U0246 -86 B1639-81 B1639-06 Blink ON No - 8. Battery supply < 6.5V - U3006-16 Blink OFF No - 9. Battery supply > 16V - U3006-17 Blink OFF No - 10. Mechanical key (without transponder) P051395 B1636-31 Blink ON No - 11. Wrong E-key (mismatch of transponder & code in ICU) P051395 B1636-81 Blink ON No - 12. Required E-keys are not learnt with Immobilizer -- B1637-84 Blink ON Yes - 13. Immo Antenna failure - B163D-13 Blink ON No - Immo hardware fault U0426 B163A-96 Blink ON No - 14. Immo Memory failure - U1006- Blink ON No
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