24
Troubleshooting Diagnostic Trouble Codes:
Pressure Modulator Valves
7 Left Steer Axle
8 Right Steer Axle
9 Left Drive Axle
10 Right Drive Axle
16 Left Additional Axle
17 Right Additional Axle
20 Trailer PMV
1st. Blink
Code
Location
2nd. Diagnostic
Blink Trouble Code
Code Description
1 Release
Solenoid
Shorted
to Ground
2 Release
Solenoid
Shorted to
Voltage
3 Release
Solenoid
Open Circuit
4 Hold
Solenoid
Shorted
to Ground
5 Hold
Solenoid
Shorted
to Voltage
6 Hold
Solenoid
Open Circuit
7 CMN Open
Circuit
8 Configuration
Error
Verify no continuity between PMV leads and ground. Verify 4.9 to 5.5 ohms from
REL to CMN & HLD to CMN, and 9.8 to 11 ohms from REL to HLD. Check for
corroded/damaged wiring or connectors between ECU and PMV.
Verify no continuity between PMV leads and voltage. Verify 4.9 to 5.5 ohms from
REL to CMN & HLD to CMN, and 9.8 to 11 ohms from REL to HLD. Check for
corroded/damaged wiring or connectors between ECU and PMV.
Verify 4.9 to 5.5 ohms from REL to CMN & HLD to CMN, and 9.8 to 11 ohms from
REL to HLD. Check for corroded/damaged wiring or connectors between ECU
and PMV.
Verify no continuity between PMV leads and ground. Verify 4.9 to 5.5 ohms from
REL to CMN & HLD to CMN, and 9.8 to 11 ohms from REL to HLD. Check for
corroded/damaged wiring or connectors between ECU and PMV.
Verify no continuity between PMV leads and voltage. Verify 4.9 to 5.5 ohms
from REL to CMN & HLD CMN, and 9.8 to 11 ohms from REL to HLD. Check for
corroded/damaged wiring or connectors between ECU and PMV.
Verify 4.9 to 5.5 ohms from REL to CMN & HLD to CMN, and 9.8 to 11 ohms from
REL to HLD. Check for corroded/damaged wiring or connectors between the ECU
and PMV.
Verify 4.9 to 5.5 ohms from REL to CMN & HLD to CMN, and 9.8 to 11 ohms from
REL to HLD. Check for corroded/damaged wiring or connectors between the ECU
and PMV.
A mis-match exists between the ECU configuration and the modulator installation
and wiring. Verify PMV wiring and installation. Verify ECU configuration.
Repair Information