WORKHORSE CUSTOM CHASSIS
Service Manual
2007 W Series
SECTION
7.2
PAGE
108
Automatic Transmission – Allison
2007 W Series Chassis
© 2006 Workhorse Custom Chassis — All Rights Reserved
WSM082106
DTC P0218
Step
Action
Yes
No
Schematic Reference: Automatic Transmission Controls Schematics
1
Did you perform the Diagnostic System Check - Vehicle?
Go to Step 2
Go to Diagnostic
System Check - Vehicle
2
1. Install the scan tool.
2. Turn ON the ignition, with the engine OFF.
IMPORTANT:
Before clearing the DTCs, use the scan tool in order to record the
Before clearing the DTCs, use the scan tool in order to record the
Freeze Frame and Failure Records. The Clear Info function will
Freeze Frame and Failure Records. The Clear Info function will
erase the data.
erase the data.
3. Record the DTC Freeze Frame and Failure Records.
4. Clear the DTC.
5. Perform the Transmission Fluid Checking Procedure. Refer to Transmission
Fluid Checking Procedure .
Is the transmission fluid level correct?
Go to Step 3
Go to Transmission
Fluid Checking
Procedure
3
1. Inspect the engine cooling system for the following conditions:
– Air fl ow restrictions
– Air fl ow blockage
– System fl uid level and condition
– Debris
2. Inspect the transmission cooling system for the following conditions:
– Air fl ow restrictions
– Air fl ow blockage
– System fl uid level and conditions
– Debris
– Damaged cooler lines or hoses
Did you find and correct the condition?
Go to Step 6
Go to Step 4
4
Perform the Line Pressure Check Procedure. Refer to Line Pressure Check Procedure.
Is the line pressure correct?
Go to Step 6
Go to Step 5
