Honda Pilot: Wiper Motor Test

Test

Windshield

1. Windshield Wiper Arm Assembly - Remove

2. Cowl Covers - Remove

3. Windshield Wiper Motor - Test

1. Disconnect the connector.
2. Test the wiper motor by connecting battery power to terminal No. 1 and ground to terminal No. 5 of the wiper motor. The wiper motor should run at low speed.
3. Test the wiper motor by connecting battery power to terminal No. 4 and ground to terminal No. 5 of the wiper motor. The wiper motor should run at high speed.
4. Connect an analog ohmmeter to terminals No. 3 and No. 5, and run the wiper motor at low or high speed. The needle of the ohmmeter should pulse. If the wiper motor does not run or fails to run smoothly, or there is no pulse, replace the windshield wiper motor (A) or the wiper linkage.

4. All Removed Parts - Install

1. Install the parts in the reverse order of removal.

Rear Window

1. Rear Window Wiper Arm Assembly - Remove

2. Tailgate Lower Trim Panel - Remove

3. Rear Window Wiper Motor - Test

1. Disconnect the connector.
2. Test the wiper motor by connecting battery power to terminal No. 1 and ground to terminal No. 2 of the wiper motor. The wiper motor should run.
3. Connect an analog ohmmeter to terminals No. 3 and No. 2.

   The ohmmeter should indicate continuity and no continuity alternately. If the wiper motor does not run or fails to run smoothly, or there is no pulse, replace the rear window wiper motor (A).

4. All Removed Parts - Install

1. Install the parts in the reverse order of removal.

Wipers/Washers (MICU) Input Test

NOTE:

• Before testing, check for DTCs. If any DTCs are indicated, troubleshoot those DTCs first.
• If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
• Before testing, make sure the No. A2-2 (30 A), No. A2-3 (20 A), and A26 (10 A) fuses in the under-hood fuse/relay box are OK.
• Before testing, make sure the No. C8 (7.5 A) and No. C29 (7.5 A) fuses in the under-dash fuse/relay box are OK.
• Before testing, make sure the No. D4 (7.5 A)* in the auxiliary under-hood fuse/relay box are OK.

*: With auto idle stop system 1. Press the engine start/stop button to select the OFF mode.

2. Disconnect under-dash fuse/relay box connectors D, E, F, M, N, and P.

NOTE: All connector views are shown from the wire side of the female terminals.

3. Inspect the connectors and socket terminals to be sure they are all making good contact:

• If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
• If the terminals are OK, go to step 4.

4. With the connectors still disconnected, do the following input tests:

• If any test indicates a problem, find and correct the cause, then recheck the system.
• If all the input tests prove OK, go to step 5.

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired result is not obtained
E16	YEL	Under all conditions	Connect terminals M9 and D34, and terminal E16 and E7 with jumper wires: The windshield wiper motor should run at high speed.	Faulty windshield wiper motor relay Faulty windshield wiper intermittent relay Faulty windshield wiper motor Poor ground (G204) or an open in the ground wire An open or high resistance in the wire
N9 - N11	BLU - BLK	Windshield wiper/washer switch (Intermittent dwell time controller) turned ON.	Measure the resistance between terminals N9 and N11: The resistance should vary between 0 to 1 kΩ.	Faulty windshield wiper/washer switch An open or high resistance in the ground wire A short to ground in the wire
E15	GRY	Run the windshield wiper motor by connecting terminals M9 and E34, and terminal E16 and body ground with jumper wires.	Connect terminal E15 to body ground with a jumper wire: The windshield wiper motor speed should change from high speed to low speed.	Faulty windshield wiper motor Faulty windshield wiper high/low relay An open or high resistance in the wire
E28	RED	Run the windshield wiper motor by connecting terminals M9 and E34, and terminal E16 and body ground with jumper wires.	Check for continuity to Ground when a wiper is Park position and there is no continuity to Ground in the other position.	Faulty windshield wiper motor An open or high resistance in the wire

5. Reconnect the connectors to the under-dash fuse/relay box, and do the following input tests:

• If any test indicates a problem, find and correct the cause, then recheck the system.
• If all the input tests prove OK, the MICU must be faulty; replace the under-dash fuse/relay box.

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired result is not obtained
M9	WHT	Under all conditions	Measure the voltage to ground: There should be battery voltage.	Blown No. A26 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire
F2	WHT	Vehicle ON mode	Measure the voltage to ground: There should be battery voltage.	Blown No. B1-6 (30 A) fuse in the auxiliary under-hood fuse/relay box Faulty under-dash subrelay box An open or high resistance in the wire
D14	BLK	In all power modes	Measure the voltage to ground: There should be less than 0.2 V.	Poor ground (G601) An open or high resistance in the ground wire
D42	BLK	In all power modes	Measure the voltage to ground: There should be less than 0.2 V.	Poor ground (G601) An open or high resistance in the ground wire
P1	BLK	In all power modes	Measure the voltage to ground: There should be less than 0.2 V.	Poor ground (G401) An open or high resistance in the ground wire
E7	PUR	Brake pedal pressed	Measure the voltage to ground: There should be battery voltage.	Blown No. A25 (20 A) and No. A17 (10 A) fuses in the under-hood fuse/relay box Faulty brake pedal position switch An open or high resistance in the wire
		Brake pedal pressed	Measure the voltage to ground: There should be no voltage.	Faulty brake pedal position switch A short to power in the wire
N3 - N11	TAN - BLK	Windshield wiper/washer switch (INT or LO) ON	Measure the voltage to ground: There should be less than 0.2 V.	Faulty windshield wiper/washer switch An open or high resistance in the wire
		Windshield wiper/washer switch OFF	Measure the voltage to ground: There should be about battery voltage.	Faulty windshield wiper/washer switch A short to ground in the wire
N13 - N11	PUR - BLK	Windshield wiper/washer switch (MIST) ON	Measure the voltage to ground: There should be less than 0.2 V.	Faulty windshield wiper/washer switch An open or high resistance in the wire
		Windshield wiper/washer switch OFF	Measure the voltage to ground: There should be about battery voltage.	Faulty windshield wiper/washer switch A short to ground in the wire
N2 - N11	WHT - BLK	Windshield wiper/washer switch (LO or HI) ON	Measure the voltage to ground: There should be less than 0.2 V.	Faulty windshield wiper/washer switch An open or high resistance in the wire
		Windshield wiper/washer switch OFF	Measure the voltage to ground: There should be about battery voltage.	Faulty windshield wiper/washer switch A short to ground in the wire
N12 - N11	YEL - BLK	Windshield washer switch ON	Measure the voltage to ground: There should be less than 0.2 V.	Faulty windshield wiper/washer switch An open or high resistance in the wire
		Windshield washer switch OFF	Measure the voltage to ground: There should be about battery voltage.	Faulty windshield wiper/washer switch A short to ground in the wire
N6 - N11	BRN - BLK	Rear window wiper/washer switch (INT) ON	Measure the voltage to ground: There should be less than 0.2 V.	Faulty rear window wiper/washer switch An open or high resistance in the wire
		Rear window wiper/washer switch OFF	Measure the voltage to ground: There should be about battery voltage.	Faulty rear window wiper/washer switch A short to ground in the wire
N5 - N11	PNK - BLK	Rear window wiper/washer switch (INT, LO or WASH) ON	Measure the voltage to ground: There should be less than 0.2 V.	Faulty rear window wiper/washer switch An open or high resistance in the wire
		Rear window wiper/washer switch OFF	Measure the voltage to ground: There should be about battery voltage.	Faulty rear window wiper/washer switch A short to ground in the wire
N4 - N11	GRN - BLK	Rear window wiper/washer switch (WASH) ON	Measure the voltage to ground: There should be less than 0.2 V.	Faulty rear window wiper/washer switch An open or high resistance in the wire
		Rear window wiper/washer switch OFF	Measure the voltage to ground: There should be about battery voltage.	Faulty rear window wiper/washer switch A short to ground in the wire
E27	BLU	Shift position/mode in P	Measure the voltage to ground: There should be less than 0.2 V.	Faulty or improperly adjusted transmission range switch*1 Faulty SBW shifter control module*2 Poor ground (G101) or an open in the ground wire An open or high resistance in the wire
		Shift position/mode in any position other than P	Measure the voltage to ground: There should be about 5 V.	Faulty or improperly adjusted transmission range switch*1 Faulty SBW shifter control module*2 A short to ground in the wire

*1: 6-speed A/T
*2: 9-speed A/T