HARRIER BOOK 2

Vehicle Platform: OSPREY / AMP

ECU Name: PEPS

DTC Troubleshooting Data

Version: 1.2

Date: 29 Mar 2017

Author:

Rajasekhara Reddy

Page: 103 of 369

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.

B164B - 14:- CRANK Relay Feedback - circuit short to ground or open

Overview:-

ISO Code (DTC Code)

B164B – 14

Customer Symptom

Could not start vehicle.

Fault Effects (On Vehicle)

Could not start vehicle.

Lamp Status (If Any)

Fault Detection Condition

During Cranking ON.

Normal Operating Condition

During cranking, crank relay feedback line should be equal to

battery voltage.

Probable Trouble Area

1. Crank relay feedback line between PEPS ecu

connector-3/pin-18 and vehicle ground signal..

Healing Condition

IGN OFF -> ON.

Table 183

:- B164B- 14 overview details

Component Details:-

1. PEPS ECU.

2. Crank relay

Preliminary Checks:-

1. Check Battery Voltage (9V-16V).

2. Check ECU pins for oxidation, bending & damage.