Signal Too High - Intermittent Fault

ECM-1600 BOOST PRESSURE SENSOR
SIGNAL TOO HIGH - INTERMITTENT FAULT

Checking cables and connectors



Check the boost pressure sensor connector for contact resistance and oxidation according to [1][2]Checking Wiring and Terminals. Intermittent Faults and loose connections according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Check the signal cable between control module #A23 (#A23) and boost pressure sensor terminal 3 for an intermittent open-circuit according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Check the ground lead between control module #A60 (#A60) and boost pressure sensor terminal 2 for an intermittent open-circuit according to [1][2]Checking Wiring and Terminals. Intermittent Faults

Other information
- Connecting the breakout box/accessing the control module Connecting the Breakout Box (ECM)
- To access/replace the boost pressure sensor, Manifold Absolute Pressure (MAP) Sensor, Replacing
- For information about signals, see Diagnostic Parameters and Pinout Values. Signal Description, ME7, B5XX4T


Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.