Pinpoint Test AP: The Low Washer Fluid Level RTT (RECONFIGURABLE Telltale) Indicator Is Never Or Always On
- Refer to Wiring Diagrams INSTRUMENT CLUSTER
for schematic and connector information.
Normal Operation and Fault Conditions
See Low Washer Fluid Level RTT Indicator. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
Possible Sources
- Wiring, terminals or connectors
- Low washer fluid level sensor
- IPC
Visual Inspection and Pre-checks
- Verify the washer fluid reservoir is full and the ignition has been cycled at least once prior to beginning the pinpoint test for an always on condition or the washer fluid is or has been reported low for a never on condition.
- AP1 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors and the hood.
- Clear all message center warnings by pressing the OK button for each warning present.
- Monitor the door ajar message center warning indicator.
- Open the driver door.
- Clear the message center popup warning.
- Monitor the door ajar message center warning indicator.
Is the door ajar message center warning indicator off with the door closed then does the message center warning indicator turn on with the door open?
Yes If the low washer fluid level message center indicator is inoperative, GO to AP2 If the low washer fluid level message center indicator is always on, GO to AP5 No GO to Pinpoint Test A - AP2 CHECK THE LOW WASHER FLUID INDICATOR OPERATION
- Ignition OFF.
- Disconnect Low Washer Fluid Level Sensor C138.
- Ignition ON.
- Wait one minute.
- Observe the low washer fluid level message center indicator.
Is the low washer fluid level message center indicator on?
Yes REMOVE the fused jumper wire. INSTALL a new washer fluid level sensor. REFER to: Windshield Washer Fluid Level Sensor . No REMOVE the fused jumper wire. GO to AP3 - AP3 CHECK THE WASHER FLUID LEVEL SENSOR GROUND CIRCUIT FOR AN OPEN AT THE WASHER FLUID LEVEL SENSOR
- Ignition OFF.
- Measure:
Positive Lead Measurement / Action Negative Lead C138-2 Ground
Is the resistance less than 3 ohms?
Yes GO to AP4 No REPAIR the circuit. - AP4 CHECK THE WASHER FLUID LEVEL INPUT CIRCUIT FOR AN OPEN
- Disconnect IPC C220A.
Is the resistance less than 3 ohms?
Yes GO to AP7 No REPAIR the circuit. - AP5 CHECK THE WASHER FLUID LEVEL INPUT CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Disconnect Low Washer Fluid Level Sensor C138.
- Ignition ON.
- Wait one minute.
- Observe the low washer fluid level message center indicator.
Did the low washer fluid level message center indicator turn off?
Yes INSTALL a new washer fluid level sensor. REFER to: Windshield Washer Fluid Level Sensor . No GO to AP6 - AP6 CHECK THE WASHER FLUID LEVEL INPUT CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Disconnect IPC C220A.
- Measure:
Positive Lead Measurement / Action Negative Lead C220A-11 Ground
Is the resistance greater than 10, 000 ohms?
Yes GO to AP7 No REPAIR the circuit. - AP7 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION
- Ignition OFF.
- Disconnect and inspect the IPC connector.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the IPC connector. Make sure it seats and latches correctly.
- Operate the system and determine if the concern is still present
Is the concern still present?
Yes CHECK On-Line Automotive Service Information System (OASIS) for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPC. REFER to: Instrument Panel Cluster (IPC) . No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.