'08 USA models

Remove the rear panel insulator (see REAR PANEL INSULATOR REPLACEMENT ).
Disconnect the 5P connector (A) from the imoes unit (B).

Fig 1: Identifying Imoes Unit 5P Connector Terminals (08 USA Models)
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 4.

Reconnect the connector to the imoes unit, and make these input tests at the connector.

If any test indicates a problem, find and correct the cause, then recheck the system
If all the input tests prove OK, the imoes unit must be faulty; replace it.

PROBLEM SYMPTOM CHART

Cavity	Wire (Signal)	Test Condition	Test: Desired result	Possible cause if desired result is not obtained
1	BRN/YEL (LG1)	Under all conditions	Check for continuity to ground: There should be continuity.	Faulty PCM or disconnect connector An open in the wire
5	WHT/RED (+B)	Under all conditions	Check for voltage to ground: There should be battery voltage.	Blown No. 7 (7.5 A) fuse in the under-dash fuse/relay box An open in the wire
3	BLK/GRN (IG1)	Ignition switch ON (II).	Check for voltage to ground: There should be battery voltage.	Blown No. 19 (15 A) fuse in the under-dash fuse/relay box An open in the wire
2	RED/BLU (IMOCD)	Under all conditions NOTE: Test with imoes unit, PCM, and immobilizer control unit-receiver disconnected.	Check for continuity to ground: There should be no continuity.	Faulty immobilizer control unit-receiver Faulty PCM An open in the wire
2	RED/BLU (IMOCD)		Check for continuity between the No. 2 terminal, PCM connector A (44P) No. 44 terminal, and immobilizer control unit-receiver No. 2 terminals: There should be continuity
4	RED/WHT (KEY SW)	Ignition key removed from the ignition switch	Check for voltage to ground: There should be battery voltage	Faulty PCM Faulty ignition key switch A short to ground in the wire
4	RED/WHT (KEY SW)	Ignition key inserted in the ignition switch	Check for voltage to ground: There should be less than 1 V.	Faulty ignition key switch An open in the wire Poor around (G401)