Imoes Unit Input Test

NOTE: SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and the precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or servicing.

Remove the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).
Remove the passenger's front console cover (see step 5 on CENTER CONSOLE REMOVAL/INSTALLATION ).
NOTE: If necessary, remove the glove box (see GLOVE BOX REMOVAL/INSTALLATION ) to make a space to see the imoes unit from the front passenger's side.
Disconnect the 5P connector (A) from the imoes unit (B).

Fig 1: Disconnecting 5P Connector From Imoes Unit
Courtesy of AMERICAN HONDA MOTOR CO., INC.
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 5.

With the connector 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 6.

TEST CONDITION AND WIRE REFERENCE CHART

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired result is not obtained
2	ORN (IMOCD (S-NET))	Disconnect: PCM connector A (49P) Immobilizer control unit-receiver 7P connector Keyless Access control unit connector A (31P)	Measure the voltage on the circuit: There should be to no voltage.	Short to power in the wire
			Check for continuity to ground: There should be to no continuity.	Short to ground in the wire
			Check for continuity between terminal No. 2 and PCM connector A (49P) terminal No. 46: There should be continuity.	An open or high resistance in the wire
			Check for continuity between terminal No. 2 and immobilizer control unit-receiver 7P connector terminal No. 2: There should be continuity.
			Check for continuity between terminal No. 2 and keyless access control unit connector A (31P) terminal No. 7: There should be continuity.

Reconnect the connector to the unit, turn the ignition switch to ON (II), 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, replace the imoes unit (see IMOES UNIT REPLACEMENT ).

TEST CONDITION AND WIRE REFERENCE CHART

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired result is not obtained
1	BLK (LG3)	In all ignition switch positions	Measure the voltage to ground: There should be less than 0.2 V.	Poor ground (G101) or an open in the ground wire An open or high resistance in the wire
3	YEL (IG1)	Ignition switch ON (II)	Measure the voltage to ground: There should be battery voltage.	Blown No. 19 (20 A) fuse in the driver's under-dash fuse/relay box An open or high resistance in the wire
4	GRN (KEY SW)	Built-in key is in the ignition switch	Measure the voltage to ground: There should be less than 0.2 V.	Faulty ignition switch control unit An open or high resistance in the wire
4	GRN (KEY SW)	Built-in key is removed from the ignition switch	Measure the voltage to ground: There should be battery voltage.	Faulty ignition switch control unit An open or high resistance in the wire
5	WHT (+B)	Under all conditions	Measure the voltage to ground: There should be battery voltage.	Blown No. 15 (40 A) fuse in the under-hood fuse/relay box Blown No. 7 (10 A) fuse in the driver's under-dash fuse/relay box An open or high resistance in the wire