3513 / 4910
Vehicle Platform: OSPREY / AMP
ECU Name: PEPS
DTC Troubleshooting Data
Version: 1.2
Date: 29 Mar 2017
Author:
Rajasekhara Reddy
Page: 231 of 369
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.
B1018 – 12:- Control Signal to Ignition Relay Output – Short to Battery
Overview:-
ISO Code (DTC Code)
B1018 – 12
Customer Symptom
1. Green color Ignition LED will remain ON in OFF, ACC
& IGN power mode.
2. Vehicle will always Ignition or crank ON condition.
3. Vehicle cranking is possible.
Fault Effects (On Vehicle)
1. Green color Ignition LED will remain ON in OFF, ACC
& IGN power mode.
2. Vehicle will always Ignition or crank ON condition.
3. Vehicle cranking is possible.
Lamp Status (If Any)
N.A.
Fault Detection Condition
1. Permanent short circuit to battery of control signal to
Ignition relay output.
2. Wire cut & shorting to battery of Connector-2 / Pin-20
signal.
3. Bending of pin-20 of connector-2 and shorting to
adjacent pin.
Normal Operating Condition
1. Vehicle battery voltage shall be normal.
2. No fault on control signal to Ignition relay output
should be present.
3. Ignition color LED is SSB should be working.
Probable Trouble Area
1. Permanent short circuit to battery of control signal to
Ignition relay output.
2. Wire cut & shorting to battery of Connector-2 / Pin-20
signal with vehicle body.
3. Bending of pin-20 of connector-2 and shorting to
battery pin.
4. Green color LED is SSB is faulty.
Healing Condition
1. After fixing short to battery fault on control signal to
Ignition relay output, In OFF power mode NO LED
should turn ON, In Accessory power mode amber
color LED should turn ON & in Ignition power mode
green color LED should turn ON.
Table 50:- B1018 - 12 overview details
Component Details:-
1. PEPS ECU
2. Ignition relay
3. Start/stop button
Preliminary Checks:-
1. Check vehicle battery voltage, it should be normal.
2. Check ECU pins for oxidation, bending or damage.