Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 203 of 834 Copyright by TATA MOTORS Ltd. This document must not be used in any w ay, such as copying and redistributing to third parties, w ithout our consent P0069–23: Manifold Absolute Pressure - Barometric Pressure Correlation Low Overview: Code Cause Effect on Vehicle Fault Code: P0069- 23 1. Manifold pressure sensor drift is above negative limit 2. Drift in sensor 3. Damaged manifold pressure sensor 1.CE Lamp ON 2.Reduced vehicle performance 3. Disabled drive mode option Lamp status: Check Engine Lamp on Malfunction Indicator Lamp off Checkpoints: 1. Check whether power latch is happening normally. 2. Check for any atmospheric pressure sensor related faults. If present, address it first. Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check if the TMAP sensor connector is connected properly - Step 2 Check for continuity between TMAP sensor connector pins 1, 2, 3, 4 and ECU connector pin A15, A34, A54, A06 Check the End to end continuity using multi-meter Step 3 Check the delta between atmospheric pressure and manifold pressure (should be less than 15 kPa) using service tool in key on. Engine not running condition during check Step 4 Check the TMAP sensor physically for any damage - Step 5 Do several power latches and recheck the difference between atmospheric pressure & Manifold pressure value in key on condition using service tool - Step 6 If the problem persists, replace the TMAP sensor -
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