Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2000 Honda S2000FACTORY OEM SERVICE PROCEDURE

System Description

WARNING: This page is about a different car, the 2009 Honda S2000 and 2008 Honda S2000. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Heater Control Panel 30P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.

SYSTEM DESCRIPTION REFERENCE

Cavity	Wire color	Signal
1	PNK	AIR MIX COOL	OUTPUT
2	PNK/BLU	AIR MIX HOT	OUTPUT
3	YEL/BLU	MODE DEF	OUTPUT
4	YEL/RED	MODE VENT	OUTPUT
5	GRY	AIR MIX POTENTIAL +5 V	OUTPUT
6	PNK/BLK	AIR MIX POTENTIAL	OUTPUT
8	YEL/GRN	MODE 2	OUTPUT
9	BRN/WHT	MODE 1	OUTPUT
10	LTGRN	SENSOR COMMON GROUND	INPUT
11	BLU/RED	BLOWER FEEDBACK	INPUT
13	BLU/YEL	POWER TRANSISTOR BASE	OUTPUT
15	GRN/WHT	FRESH	INPUT
16	GRN/YEL	RECIRCULATE	INPUT
21	YEL	MODE 4	OUTPUT
22	BLK/WHT	MODE 3	OUTPUT
23	BLK/WHT	GAUGE ASSEMBLY	OUTPUT
26	BLK	GROUND	INPUT
27	RED	GAUGE ASSEMBLY	OUTPUT
28	RED/BLK	TAILLIGHTS RELAY	INPUT
29	WHT/RED	+B (Power)	INPUT
30	BLK/YEL	IG2 (Power)	INPUT

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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