HARRIER BOOK 2

Vehicle Platform: NEXON

ECU Name: ESCL

DTC Troubleshooting Data

Version: 1.4

Date: 09 Jan 2018

Author: Hitesh Kaneria

Page: 43 of 88

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.

U1008-17: Control Module Input Power 1 - circuit voltage above threshold

Overview:

ISO Code

U1008-17

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 greater than 16V Alternator voltage o/p is greater

than 14.5V.

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

Vehicle electrical fault

Healing Condition

Table 13: U1008-17 overview details

Component Details:

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.