Water-in-Fuel Lamp Diagnosis
Diagnostic Instructions
Circuit/System Description
Ignition 1 voltage is supplied directly to the water in fuel
lamp. The engine control module (ECM) turns the water in fuel lamp
ON by sending a request to the instrument panel cluster via the CAN
communication circuit. The ECM monitors the amount of water in the
fuel with a sensor located in the fuel filter assembly. When the
water in the fuel is above an acceptable level, the ECM sends a
request to illuminate the water in fuel lamp.
Reference Information
Schematic Reference
Instrument Cluster Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Instrument Cluster Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
| 1. |
Ignition ON, observe the DTC
information with a scan tool. Verify that DTC U0140 is not
set. |
| 2. |
Command the All Indicators
test ON and OFF with a scan tool, verify that the water in fuel
indicator changes between turn ON and OFF. |
| ⇒ |
If the water in fuel indicator always stays on or
always off, replace the P16 Instrument Cluster. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the repair.
Control Module References for instrument panel cluster
replacement, setup and programming
|
