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PSCM
DTC Troubleshooting Guide for Nexon
Version: 1.1
Date: 21/06/2017
Author: E&E Chassis - ERC
Page: 50 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.
C1315 - 54: Steering angle calibration – Missing calibration
Overview:
ISO Code
C1315-54
Customer Symptom
Active return and end stop disabled
Fault Effects (On Vehicle)
Assistance available.
Active return and End stop disabled
Lamp Status (If Any)
Warning Lamp ON
Fault Detection Condition
Active return (Comfort function) and end stop disabled as
PSCM steering is not calibrated.
Normal Operating Condition
PSCM should provide assist if steering wheel is steered after
engine is cranked. Normal operating range:
ECU will awake from 6V to 18V.
Full assistance is b/w 10V to 16V
Reduced assistance is b/w 8.7V to 10V
Probable Trouble Area
PSCM Steering angle is not calibrated
Healing Condition
NA
Component Details:
Steering angle sensor - It measures changes in the steering geometry between the steering wheel and the road wheels.
Steering angle sensor calibration permanently stores the current steering wheel position as the straight-ahead position in
the steering angle sensor memory.
Preliminary Checks:
NA