NANO VOLUME 1 & 2

ELECTRICALS

198

8.0 BRAKE SWITCH FAILURE CASES AND RECOVERY ON VEHICLE:

Sr.

No.

Failure Cases

Recovery on vehicle & TCU implementation

Brake switch connector Open / Brake

switch - Open pin 147 (NC contact)

1. After 5 ignition cycle (on/off: 1cycle = 30sec), EMS

send Brake switch signal is not correct on CAN, then:

a) TCU log DTC

b) Creeping disabled

c) Able to drive in all gears

2. Before five Ignition cycle, upshift will happened at

engine rpm @ 4500 in auto mode. Vehicle runs

normally in manual mode. (As TCU gets information

from EMS as brake pressed and signal correct).

Brake switch - Open pin 135 (NO

contact) and pressed brake

Brake switch open (both pin no 135 and

147)