Pinpoint Test Bi: A Low Washer Fluid Level Display Is Never Or Always On

BI1 CHECK THE MESSAGE CENTER OPERATION
- Close all doors.
- Ignition ON.
- Open the driver front door and observe the message center operation.
Does the message center display the driver door ajar message?
1. Yes : GO to BI2
2. No : GO to PINPOINT TEST A
BI2 RETRIEVE THE RECORDED DTCS FROM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using a scan tool, perform the IPC self-test.
Are any DTC recorded?
1. Yes : For DTC U0140:00, GO to PINPOINT TEST AF
  For all other DTCs, REFER to DTC CHART: IPC in this service information.
2. No : GO to BI3
BI3 RETRIEVE THE RECORDED DTCS FROM THE BCM (BODY CONTROL MODULE) SELF-TEST
- Using a scan tool, perform the BCM self-test.
Are any DTCs recorded?
1. Yes : For DTC B1177:13, GO to BI4
  For all other DTCs,
  
  REFER to: BODY CONTROL MODULE (BCM) .
2. No : GO to BI7

BI4 CHECK THE LOW WASHER FLUID INDICATOR OPERATION

Ignition OFF.
Disconnect: Washer Fluid Level Sensor.

Connect a fused jumper wire:

Lead 1	Measurement/Action	Lead 2
C138-2		Ground

Ignition ON.
Wait one minute.
Observe the message center low washer fluid display.

Does the low washer fluid message turn off?

Yes : REMOVE the jumper wire. GO to BI5
No : REMOVE the jumper wire. GO to BI6

BI5 CHECK THE WASHER FLUID LEVEL SENSOR GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:

Positive Lead	Measurement/Action	Negative Lead
C138-1		Ground

Is the resistance less than 3 ohms?

Yes : INSTALL a new washer fluid level sensor or reservoir as necessary.
No : REPAIR the circuit.

BI6 CHECK THE WASHER FLUID LEVEL INPUT CIRCUIT FOR AN OPEN

Ignition OFF.
Disconnect: Washer Fluid Level Sensor.
Disconnect: BCM C2280A.

Measure:

Positive Lead	Measurement/Action	Negative Lead
C138-2		C2280A-13

Is the resistance less than 3 ohms?

Yes : GO to BI9
No : REPAIR the circuit.

BI7 CHECK THE WASHER FLUID SWITCH
- Ignition OFF.
- Ignition ON.
- Wait one minute.
- Observe the message center low washer fluid display.
Does the message center turn off the low washer fluid message?
1. Yes : INSTALL a new washer fluid level sensor or reservoir as necessary.
  REFER to: WINDSHIELD WASHER RESERVOIR .
2. No : GO to BI8

BI8 CHECK THE WASHER FLUID INPUT CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.
Disconnect: BCM C2280A.

Measure:

Positive Lead	Measurement/Action	Negative Lead
C138-2		Ground

Is the resistance greater than 10, 000 ohms?

Yes : GO to BI9
No : REPAIR the circuit.

BI9 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect all BCM connectors.
- 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 BCM connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present
Is the concern still present?
1. Yes : CHECK On-Line Automotive Service Information System (OASIS) for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM .
  REFER to: BODY CONTROL MODULE (BCM) .
2. 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.