C2779

C2779; AIR SPRING SOLENOID SUPPLY/DRIVE CIRCUIT FAULT

G256924t75: CHECK THE AIR SPRING SOLENOID SUPPLY CIRCUIT FOR SHORT TO GROUND
1. Disconnect the ASU electrical connector, CR91.
2. Measure the resistance between CR91, pin 01 (YG) and GROUND.
^ Is the resistance less than 10,000 ohms?
-> Yes
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t76: CHECK THE AIR SPRING SOLENOID SUPPLY CIRCUIT FOR SHORT TO B+
1. Measure the voltage between CR91, pin 01 (YG) and GROUND.
^ Is the voltage greater than 3 volts?
-> Yes
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t77: CHECK THE AIR SPRING SOLENOID SUPPLY CIRCUIT FOR HIGH RESISTANCE
1. Disconnect the air spring solenoid electrical connector, CR22.
2. Measure the resistance between CR91, pin 01 (YG) and CR22, pin 06 (YG).
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t78: CHECK THE LEFT-HAND FRONT AIR SPRING SOLENOID DRIVE CIRCUIT FOR SHORT TO GROUND
1. Measure the resistance between CR22, pin 01 (WR) and GROUND.
^ Is the resistance less than 10,000 ohms?
-> Yes
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t79: CHECK THE LEFT-HAND FRONT AIR SPRING SOLENOID DRIVE CIRCUIT FOR SHORT TO B+
1. Measure the voltage between CR22, pin 01 (WR) and GROUND.
^ Is the voltage greater than 3 volts?
-> Yes
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t80: CHECK THE LEFT-HAND FRONT AIR SPRING SOLENOID DRIVE CIRCUIT FOR HIGH RESISTANCE
1. Measure the resistance between CR22, pin 01 (WR) and CR91, pin 02 (WR).
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t81: CHECK THE RIGHT-HAND FRONT AIR SPRING SOLENOID DRIVE CIRCUIT FOR SHORT TO GROUND
1. Measure the resistance between CR22, pin 02 (WB) and GROUND.
^ Is the resistance less than 10,000 ohms?
-> Yes
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t82: CHECK THE RIGHT-HAND FRONT AIR SPRING SOLENOID DRIVE CIRCUIT FOR SHORT TO B+
1. Measure the voltage between CR22, pin 02 (WB) and GROUND.
^ Is the voltage greater than 3 volts?
-> Yes
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t83: CHECK THE RIGHT-HAND FRONT AIR SPRING SOLENOID DRIVE CIRCUIT FOR HIGH RESISTANCE
1. Measure the resistance between CR22, pin 02 (WB) and CR91, pin 03 (WB).
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t84: CHECK THE LEFT-HAND REAR AIR SPRING SOLENOID DRIVE CIRCUIT FOR SHORT TO GROUND
1. Measure the resistance between CR22, pin 03 (WU) and GROUND.
^ Is the resistance less than 10,000 ohms?
-> Yes
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t85: CHECK THE LEFT-HAND REAR AIR SPRING SOLENOID DRIVE CIRCUIT FOR SHORT TO B+
1. Measure the voltage between CR22, pin 03 (WU) and GROUND.
^ Is the voltage greater than 3 volt?
-> Yes
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t86: CHECK THE LEFT-HAND REAR AIR SPRING SOLENOID DRIVE CIRCUIT FOR HIGH RESISTANCE
1. Measure the resistance between CR22, pin 03 (WU) and CR91, pin 05 (WU).
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t87: CHECK THE RIGHT-HAND REAR AIR SPRING SOLENOID DRIVE CIRCUIT FOR SHORT TO GROUND
1. Measure the resistance between CR22, pin 04 (WG) and GROUND.
^ Is the resistance less than 10,000 ohms?
-> Yes
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t88: CHECK THE RIGHT-HAND REAR AIR SPRING SOLENOID DRIVE CIRCUIT FOR SHORT TO B+
1. Measure the voltage between CR22, pin 04 (WG) and GROUND.
^ Is the voltage greater than 3 volts?
-> Yes
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.
-> No

G256924t89: CHECK THE RIGHT-HAND REAR AIR SPRING SOLENOID DRIVE CIRCUIT FOR HIGH RESISTANCE
1. Measure the resistance between CR22, pin 04 (WG) and CR91, pin 06 (WG).
^ Is the resistance greater than 5 ohms?
-> Yes
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.
-> No
INSTALL a new valve block, CLEAR the DTC. TEST the system for normal operation.