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PSCM
DTC Troubleshooting Guide for Nexon
Version: 1.1
Date: 21/06/2017
Author: E&E Chassis - ERC
Page: 101 of 156
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.
C1326 - 00: ASIC internal voltage faults – too low or too high supply voltage at start up
Overview:
ISO Code
C1314-13
Customer Symptom
No PSCM functionality (Heavy steering)
Fault Effects (On Vehicle)
No assistance
Lamp Status (If Any)
Warning Lamp ON
Fault Detection Condition
Low or high voltage from Battery at start up
Normal Operating Condition
PSCM should provide assist if steering wheel is steered after
engine is cranked. Normal operating range:
ECU will be awake from 6V to 16 V.
Full assistance is b/w 10V to 16V
Reduced assistance is b/w 8.7V to 10V
Drive motor “A” phase current b/w 0 to 60 Amp
Probable Trouble Area
Fuse box
Battery Supply line
Healing Condition
NA
Component Details:
NA
Preliminary Checks:
NA