HARRIER SERVICE MANUAL PART -2

Vehicle Platform: NEXON ECU Name: ESCL DTC Troubleshooting Data Version: 1.4 Date: 09 Jan 2018 Author: Hitesh Kaneria Page: 39 of 88 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. Generic DTCs U1008-16: Control Module Input Power 1 - circuit voltage below threshold Overview: ISO Code U1008-16 Customer Symptom ESCL will probably not function or will function intermittently or partially Fault Effects (On Vehicle) Cannot determine scope without knowledge of power line applicability Lamp Status (If Any) None Fault Detection Condition If Battery(supply) voltage goes below 11.5V If Alternator is not charging the battery and alternator voltage is less than 13.5V or 0V. Normal Operating Condition Normal operating range: ECU will be awake from 6V to 16 V. Full assistance is b/w 11.5 to 16 volts. Reduced assistance is b/w 9 to 11.5 V Probable Trouble Area Low battery Healing Condition NA Table 12: U1008-16 overview details Component Details: NA Preliminary Checks: 1. Voltage at the battery terminals should be greater than 11.5V. 2. ESCL power supply connector should have greater than 11.5V for full assistance. 3. Check battery cable and ESCL connector terminals for damage. 4. Check ESCL ECU for pin bend/damage. 5. Alternator output voltage should be between 13.5 V to 14.5 V in engine running condition. Troubleshooting:

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