LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 113 (Data Communication System - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC U179A >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U179A U179A - -
Ignition U179A U179A - -
Accessory WakeUp Serial Data U1814 U179A - -
Low Speed GMLAN Serial Data (+) 1 U179A 1 -
High Speed GMLAN Serial Data (+) 2 U0073, U179A 2 -
High Speed GMLAN Serial Data (-) 2 U0073, U179A 2 -
Powertrain High Speed GMLAN Serial Data (+)
or High Speed GMLAN Serial Data (+) (3)		 U0074 U0074, U179A U0074 -
Powertrain High Speed GMLAN Serial Data (-)
or High Speed GMLAN Serial Data (-) (3)		 U0074 U0074, U179A U0074 -
Ground - U179A - -
1. Scan Tool Does Not Communicate With Low Speed GMLAN Device
2. Scan Tool Does Not Communicate With High Speed GMLAN Device
scientia non olet · About LEMON Manuals