Possible Causes

An open in circuit (Y/R), (R), (DG) or (LB/O)
A short to ground in circuit (Y/R), (R), (DG) or (LB/O)
A short together in circuit (Y/R), (R), (DG) or (LB/O)
Multi-function switch
SJB

INTERMITTENT WIPER SPEED DOES NOT OPERATE CORRECTLY PINPOINT TEST REFERENCE

PINPOINT TEST 4		THE INTERMITTENT WIPER SPEED DOES NOT OPERATE CORRECTLY
STEP	INSPECTION		ACTION
1	RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCs) Retrieve and document continuous DTCs. Enter the following diagnostic mode on the diagnostic tool: Clear continuous DTCs Enter the following diagnostic mode on the diagnostic tool: Wiper/washer SJB on-demand self-test Are DTCs recorded?	Yes	: If DTC B2179, B2180, B2181, carry out the multifunction switch component test. See appropriate SYSTEM WIRING DIAGRAMS article . If the switch tests OK, go to next step.
1		No	: Carry out the multifunction switch component test. See appropriate SYSTEM WIRING DIAGRAMS article If the switch tests OK, go to step 3.
2	CHECK CIRCUIT (Y/R), 63 (R), 65 (DG) AND 680 (LB/O) FOR A SHORT TO GROUND Key OFF. Disconnect: Multifunction switch 0918-104. Disconnect: SJB J-2280d. Key ON. Measure the resistance between ground and multi-function switch: 0918-104 pin 1, circuit (Y/R). 0918-104 pin 2, circuit (DG). 0918-104 pin 3, circuit (R). 0918-104 pin 4, circuit (LB/O). Are the resistances greater than 10,000 ohms?	Yes	: Go to step 5.
2		No	: Repair circuit (Y/R), (R), (DG) or (LB/O) for a short to ground. Test the system for normal operation.
3	CHECK CIRCUIT (Y/R), (R), (DG) AND (LB/O) FOR AN OPEN Key OFF. Disconnect: Multifunction switch 0918-104. Disconnect: SJB J-2280d. Measure the resistance between multi-function switch: 0918-104 pin 1, circuit (Y/R) and SJB J-2280d pin 6, circuit (Y/R). 0918-104 pin 2, circuit (DG) and SJB J-2280d pin 10, circuit (DG). 0918-104 pin 3, circuit (R) and SJB J-2280d pin 8, circuit (R). 0918-104 pin 4, circuit (LB/O) and SJB J-2280d pin 12, circuit (LB/O). Are the resistances less than 5 ohms?	Yes	: Go to next step.
3		No	: Repair circuit (Y/R), (R), (DG) or (LB/O) for an open. Test the system for normal operation.
4	CHECK CIRCUIT (Y/R), (R), (DG) AND (LB/O) FOR A SHORT TOGETHER Measure the resistance between multi-function switch: 0918-104 pin 1, circuit (Y/R) and 0918-104 pin 2, circuit (DG). 0918-104 pin 1, circuit (Y/R) and 0918-104 pin 3, circuit (R). 0918-104 pin 1, circuit (Y/R) and 0918-104 pin 4, circuit (LB/O). 0918-104 pin 2, circuit (DG) and 0918-104 pin 3, circuit (R). 0918-104 pin 2, circuit (DG) and 0918-104 pin 4, circuit (LB/O). 0918-104 pin 3, circuit (R) and 0918-104 pin 4, circuit (LB/O). Are the resistances greater than 10,000 ohms?	Yes	: Go to next step.
4		No	: Repair circuit (Y/R), (R), (DG) or (LB/O) for a short together. Test the system for normal operation.
5	CHECK FOR CORRECT SJB OPERATION Disconnect all SJB connectors. Check for: corrosion. pushed-out pins. Connect all the SJB connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present?	Yes	: Install a new SJB. See SMART JUNCTION BOX (SJB) . Clear the DTCs, Repeat the self-test.
5		No	: The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. Clear the DTCs. Repeat the self-test.