ELECTRICAL 174 7. DIAGNOSTIC TROUBLESHOOTING TABLE FOR BOTH EMS AND ICU, WITH DTCS Following chart has useful information, under different operating conditions, which may occur on vehicle. This is valid for TATA SAFARI STORME EMS ECU DTC CODES STATUS LAMP (“LOCK” SYMBOL) SR. NO SCENARIO (BETWEEN IMMO AND EMS) EMS IMMO IGN OFF IGN ON VEHICLE STARTING REMARKS 1. CAN_H wire open circuit - - Blink OFF No NO_RESPONSE and CAN_MUTE error 2. CAN_L wire open circuit - - Blink OFF No NO_RESPONSE and CAN_MUTE error 3. CAN_H and CAN_L wires swapped - - Blink OFF No CAN_OFF and CAN_MUTE error 4. CAN_H and CAN_L short - - Blink OFF No CAN_OFF and CAN_MUTE error 5. Both CAN_H and CAN_L open - - Blink OFF No Service Lamp come ON 6. No battery supply to ICU - P0560 P0562 OFF OFF Yes No degradation in Immo function 7. No Ignition supply to ICU U0167 - Blink Blink No Service Lamp come ON 8. No Ground connection to ICU U0167 P560 P562 OFF OFF No Service Lamp come ON 9. Different AES key code in EMS and ICU U0426 U0401 Blink ON No - 10. Battery supply < 8V U0426 P0560 P0562 Blink OFF No - 11. Battery supply > 16V U0426 P0560 P0563 Blink OFF No - 12. Mechanical key (without transponder) P0513 B1343 Blink ON No - 13. Wrong E-key (mismatch of transponder and code in ICU) P0513 B1342/ P0513 Blink ON No - 14. Immobilizer unit not connected U0167 - OFF OFF No Service Lamp come ON
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