NEXON 3.0 EV DTC Troubleshooting Document for VCU Version: 2.0 Date: 22-Sep-2023 Copyright © TATA MOTORS Ltd. This document must not be used in anyway, such as copying and redistributing to third parties, without the consent of author. P30AF - 11: Cruise Switch sensor input to VECU - circuit short to ground Overview: ISO Code P30AF - 15 Customer Symptom Vehicle is operable, but cruise is not functional Fault Effects (On Vehicle) Vehicle remains in the current state of operation i.e., if cruise is not ON, cruise feature cannot be activated, OR if cruise is active, it will continue to remain in current state and it comes out of cruise function by pressing brake and the cruise will not get activated after that instant. Lamp Status (If Any) Service lamp blinking Fault Detection Condition Short to ground condition is detected by the vehicle controller when cruise switch input is lesser than threshold value Normal Operating Condition Cruise functionality will work as desired Probable Trouble Area Cruise switch Cruise switch LV wiring Harness Powertrain VCU connector Healing Condition If DTC trigger condition is healed, DTC is present only in memory Component Details: Cruise switch is used for the activating the cruise functionality Preliminary Checks: Check for loose connection of LV wiring harness between VCU and cruise switch Check for damage to LV wiring harness connections between VCU and cruise switch Visually inspect cruise switch for damage
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