Honda Pilot: Engine Oil Pressure Test

Honda Pilot 2016-2022 (YF5/YF6) Service Manual / Parts Test Info / Engine Oil Pressure Test

Test

If the low oil pressure indicator stays on with the engine running, check the engine oil level. If the oil level is normal:

1. Rocker Arm Oil Pressure Sensor - Remove

2. Engine Oil Pressure - Test

Honda Pilot. Parts Test Info

Install the oil pressure hose (A), the pressure gauge adapter (B), the A/T pressure adapter (C), the A/T pressure test hose (D), and the A/T low pressure gauge w/panel (E) as shown, then install the rocker arm oil pressure sensor to the oil pressure gauge joint attachment.
Start the engine. Shut it off immediately if the gauge registers no oil pressure. Repair the problem before continuing.
Allow the engine to reach operating temperature (fan comes on at least twice). The pressure should be:

Engine Oil Temperature: 176 ºF (80 ºC)

Engine Oil Pressure:

At Idle: 70 kPa (0.71 kgf/cm2, 10.1 psi) min.

At 3,000 rpm: 490 kPa (5.00 kgf/cm2, 71.1 psi) min.

If oil pressure is not within specifications, inspect these items:

Oil filter blocked or plugged.
Oil strainer blocked or plugged.
Inspect the oil pressure relief valve.

3. All Special Tools - Remove

4. All Removed Parts - Install

Install the parts in the reverse order of removal.

Entry Lights Control System (MICU and Door Multiplex Control Unit) Input Test

NOTE:

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. A26 (10 A) fuses in the under-hood fuse/relay box is OK.
Before testing, make sure the No. C18 (7.5 A) fuse in the under-dash fuse/relay box is OK.

MICU

1. Turn the vehicle to the OFF (LOCK) mode.

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

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

Honda Pilot. Parts Test Info

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 look OK, go to step 4.

4. Reconnect the connectors to the driver's under-dash fuse/relay box; 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, then go to step 5.

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
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
D35	LT BLU	Driver's door open	Measure the voltage to ground: There should be less than 0.2 V.	Faulty driver's door switch Faulty driver's door switch ground An open or high resistance in the wire
D35	LT BLU	Driver's door closed	Measure the voltage to ground: There should be about 5 V.	Faulty driver's door switch A short to ground in the wire
D37	BLU	Front passenger's door open	Measure the voltage to ground: There should be less than 0.2 V.	Faulty front passenger's door switch Faulty front passenger's door switch ground An open or high resistance in the wire
D37	BLU	Front passenger's door closed	Measure the voltage to ground: There should be about 5 V.	Faulty front passenger's door switch A short to ground in the wire
D34	PNK	Left rear door open	Measure the voltage to ground: There should be less than 0.2 V.	Faulty left rear door switch Faulty left rear door switch ground An open or high resistance in the wire
D34	PNK	Left rear door closed	Measure the voltage to ground: There should be about 5 V.	Faulty left rear door switch A short to ground in the wire
D28	GRN	Right rear door open	Measure the voltage to ground: There should be less than 0.2 V.	Faulty right rear door switch Faulty right rear door switch ground An open or high resistance in the wire
D28	GRN	Right rear door closed	Measure the voltage to ground: There should be about 5 V.	Faulty right rear door switch A short to ground in the wire
P17 - H11	WHT - PNK	Interior light switch in DOOR position	Connect terminal P17 to ground, and terminal H11 to ground with jumper wires: The roof console module1, rear map lights1, front individual map lights2, and rear individual map lights2 should come on.	Blown No. C18 (7.5 A) fuse in the under-dash fuse/relay box Faulty roof console module1 Faulty rear map lights1 Faulty front individual map lights2 Faulty rear individual map lights2 Faulty interior light switch*2 Faulty interior lights cut relay An open or high resistance in the wire
D39*3	PNK	Tailgate open	Measure the voltage to ground: There should be less than 0.2 V	Faulty closer unit Faulty power tailgate control unit An open or high resistance in the wire
D39*3	PNK	Tailgate closed	Measure the voltage to ground: There should be about 5 V.	Faulty closer unit A short to ground in the wire
D39*4	PNK	Tailgate open	Measure the voltage to ground: There should be less than 0.2 V.	Faulty tailgate latch switch Poor ground (G604) or an open in the ground wire
D39*4	PNK	Tailgate closed	Measure the voltage to ground: There should be about 5 V.	Faulty tailgate latch switch A short to ground in the wire
P22	PNK	Disconnect keyless access/TPMS control unit connector A (32P)	Check for continuity between terminal P22 and keyless access/TPMS control unit connector A (32P) terminal No. 2: There should be continuity.	An open or high resistance in the wire

*1: With panoramic glass roof
*2: Without panoramic glass roof
*3: With power tailgate
*4: Without power tailgate

Door Multiplex Control Unit

5. Turn the vehicle to the OFF (LOCK) mode.

6. Disconnect the power window master switch 37P connector.

Honda Pilot. Parts Test Info

7. Inspect the connector 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 look OK, go to step 8.

8. Reconnect the connectors to the power window master switch; 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 9.

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired result is not obtained
26	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 Faulty under-hood fuse/relay box An open or high resistance in the wire
25	LT GRN	Under all conditions	Measure the voltage to ground: There should be battery voltage.	Blown No. C23 (7.5 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire
3	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
31	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
33	YEL	Driver's door lock knob switch in LOCK	Measure the voltage to ground: There should be less than 0.2 V.	Faulty driver's door lock knob switch Poor ground (G401) or an open in the ground wire An open or high resistance in the wire
33	YEL	Driver's door lock knob switch in UNLOCK	Measure the voltage to ground: There should be about 5 V.	Faulty driver's door lock knob switch A short to ground in the wire
32	GRN	Driver's door lock knob switch in UNLOCK	Measure the voltage to ground: There should be less than 0.2 V.	Faulty driver's door lock knob switch Poor ground (G401) or an open in the ground wire An open or high resistance in the wire
32	GRN	Driver's door lock knob switch in LOCK	Measure the voltage to ground: There should be about 5 V.	Faulty driver's door lock knob switch A short to ground in the wire

9. If multiple failures are found on more than one control unit, replace the under-dash fuse/relay box (includes the MICU). If input failures are related to a particular control unit, replace the power window master switch.

Exterior Lights (MICU) Input Test

NOTE:

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. A4 (10 A), No. A8 (10 A), No. A10 (10 A), No. A13 (20 A), and No. A26 (10 A) fuses in the under-hood fuse/relay box are OK.
Before testing, make sure the No. C21 (7.5 A), No. C29 (7.5 A), No. C37 (10 A), and No. C38 (10 A) fuses in the under-dash fuse/relay box are OK.
Before testing, make sure the No. D4 (7.5 A)* fuse in the auxiliary under-dash fuse/relay box is OK.

*: With auto idle stop system

1. Turn the vehicle to the OFF (LOCK) 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.

Honda Pilot. Parts Test Info

3. Inspect the connector 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
E25 - E14	PUR - PNK	Connect terminal E25 and ground with a jumper wire	Measure the voltage between terminal E14 and ground: There should be battery voltage.	Blown No. A4 (10 A) fuse in the under-hood fuse/relay box Faulty relay circuit board An open or high resistance in the wire
E24	BRN	Under all conditions	Connect terminal to ground with a jumper wire: The left headlight (low beam) should come on.	Blown No. A8 (10 A) fuse in the under-hood fuse/relay box Faulty headlight relay Faulty left LED control unit1 Blown bulb2 Poor ground (G205) or an open in the ground wire An open or high resistance in the wire
E24	BRN	Under all conditions	Connect terminal to ground with a jumper wire: The right headlight (low beam) should come on.	Blown No. A10 (10 A) fuse in the under-hood fuse/relay box Faulty headlight relay Faulty right LED control unit1 Blown bulb2 Poor ground (G204) or an open in the ground wire An open or high resistance in the wire
F6 - E8	BLU - RED	Under all conditions	Connect terminal F6 and E8 with a jumper wire: The left headlight (high beam) should come on.	Blown No. C38 (10 A) fuse in the under-dash fuse/relay box Faulty the under-dash fuse relay box Poor ground (G205) or an open in the ground wire An open or high resistance in the wire
F6 - F12	BLU - GRY	Under all conditions	Connect terminal F6 and E12 with a jumper wire: The right headlight (high beam) should come on.	Blown No. C37 (10 A) fuse in the under-dash fuse/relay box Faulty the under-dash fuse/relay box Poor ground (G204) or an open in the ground wire An open or high resistance in the wire
E21	LT GRN	Under all conditions	Connect terminal to ground with a jumper wire: The front fog lights should come on.	Blown No. A15 (15 A) fuse in the under-hood fuse/relay box Faulty LED Faulty front fog light relay An open or high resistance in the wire

*1: With LED headlight
*2: Without LED headlight

5. Reconnect the connectors to the under-dash fuse/relay box, 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	Under all conditions	Measure the voltage to ground: There should be battery voltage.	Blown No. B-16 (30 A) fuse in the auxiliary under-hood fuse/relay 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 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
P22	PNK	Disconnect keyless access/TPMS control unit connector A (32P)	Check for continuity between terminal P22 and keyless access/TPMS control unit connector A (32P) terminal No. 2: There should be continuity.	An open or high resistance in the wire
N18 - N1	PNK - BRN	Combination light switch OFF	Measure the voltage between terminals N18 and N1: There should be less than 0.2 V.	Faulty combination light switch An open or high resistance in the wire
N18 - N1	PNK - BRN	Combination light switch in any position other than OFF	Measure the voltage between terminals N18 and N1: There should be about 5 V.	Faulty combination light switch A short to ground in the wire
N20 - N1	WHT - BRN	Combination light switch (PARKING position) ON	Measure the voltage between terminals N20 and N1: There should be less than 0.2 V..	Faulty combination light switch An open or high resistance in the wire
N20 - N1	WHT - BRN	Combination light switch OFF	Measure the voltage between terminals N20 and N1: There should be about 5 V.	Faulty combination light switch A short to ground in the wire
N19 - N1	BRN - BRN	Combination light switch (headlight) ON	Measure the voltage between terminals N19 and N1: There should be less than 0.2 V..	Faulty combination light switch An open or high resistance in the wire
N19 - N1	BRN - BRN	Combination light switch OFF	Measure the voltage between terminals N19 and N1: There should be about 5 V.	Faulty combination light switch A short to ground in the wire
N17 - N1	RED - BRN	Combination light switch lever pulled (Passing)	Measure the voltage between terminals N17 and N1: There should be less than 0.2 V.	Faulty combination light switch An open or high resistance in the wire
N17 - N1	RED - BRN	Combination light switch lever released (OFF)	Measure the voltage between terminals N17 and N1: There should be about 5 V.	Faulty combination light switch A short to ground in the wire
N16 - N1	LT BLU - BRN	Combination light switch (Dimmer) in high beam position	Measure the voltage between terminals N16 and N1: There should be less than 0.2 V.	Faulty combination light switch An open or high resistance in the wire
N16 - N1	LT BLU - BRN	Combination light switch (Dimmer) in low beam position	Measure the voltage between terminals N16 and N1: There should be about 5 V.	Faulty combination light switch A short to ground in the wire
N10 - N1	PUR - BRN	Fog light switch ON	Measure the voltage between terminals N10 and N1: There should be less than 0.2 V.	Faulty combination light switch An open or high resistance in the wire
N10 - N1	PUR - BRN	Fog light switch OFF	Measure the voltage between terminals N10 and N1: There should be about 5 V.	Faulty combination light switch A short to ground in the wire