Operation CHARM: Car repair manuals for everyone.
Home >> Lincoln >> 2006 >> Navigator 2WD V8-5.4L VIN 5 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Pinpoint Tests >> Test K: The Air Suspension Control Module Does Not Respond To The Diagnostic Tool
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Test K: The Air Suspension Control Module Does Not Respond To The Diagnostic Tool

PINPOINT TEST K: THE AIR SUSPENSION CONTROL MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL


K1-K2:






K2-K3:






Normal Operation
The air suspension control module communicates with the diagnostic tool through the medium speed controller area network (CAN), circuits 2180 (WH/BK) and 2181 (BK/YE). Check circuits 2180 (WH/BK) and 2181 (BK/YE) between the air suspension control module C2324b (Expedition) or C2131b (Navigator) and the data link connector (DLC) C251. The total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms there is an open in one of the medium speed CAN circuits, damage to the DLC C251, damage to the air suspension control module C2324b (Expedition) or C2131b (Navigator), or a problem in an in-line connector.

Possible Causes
- medium speed CAN circuit 2180 (WH/BK) open
- medium speed CAN circuit 2181 (BK/YE) open
- air suspension control module
- air suspension control module C2324b (Expedition only)
- air suspension control module C2131b (Navigator only)
pro multis · About Operation CHARM