Toyota Corolla 9 ^th Generation (E120)

Data Link Connector 3 (D1)

Terminal No	Symbol (Pin Definition)	Wiring (Color Code) & Color	Electrical Paths

1	_	_	_
2	_	_	_
3	_	_	_
4	CG	(W-B) White/Black	➔ 4B ¹⁶ ⇔ 4B ²¹ ➔ J6 ^A ⬌ J6 ^A ➔ ▼ IE (Ground Point)
5	SG	(BR) Brown	➳ J5 ^A ⬌ J4 ^A ➔ ▼ EB (Ground Point)
6	_	_	_
7	SIL	(L-R) Blue/Red	➔ 3B ² ⇔ 3B ⁴ ➔ IJ ⁵ ⇔ II ² ➔ A13 ¹² (SIL) [Airbag Sensor Assembly] ➔ 3B ² ⇔ 3B ¹ ➳ IA6 ⁴ ➔ S1 ¹¹ (D/G) [Skid Control ECU with Actuator] ➔ 3B ² ⇔ 3B ³ ➔ E6 ¹⁸ (SIL) [Engine Control Module]
8	_	_	_
9	_	_	_
10	_	_	_
11	A/B	(B-Y) Black/Yellow	➔ 4C ¹³ ⇔ 4C ¹⁵ ➔ IJ ¹ ⇔ II ⁵ ➔ A13 ³ (LA) [Airbag Sensor Assembly] ➔ 4C ¹³ ⇔ 4C ¹⁴ ➔ C9 ³⁹ [Combination Meter]
12	TS	(GR) Gray	➳ IA6 ¹¹ ➔ S1 ¹⁰ (TS) [Skid Control ECU with Actuator]
13	TC	(P-B) Pink/Black	➔ 4C ³ ⇔ 4C ⁵ ➔ IJ ⁴ ⇔ II ⁴ ➔ A13 ¹⁹ (TC) [Airbag Sensor Assembly] ➔ 4C ³ ⇔ 4C ⁴ ➔ E6 ²⁰ (TC) [Engine Control Module] ➔ 4C ³ ⇔ 4C ² ➔ C14 ¹⁰ (TC) [Cruise Control ECU] ➔ 4C ⁴ ⇔ 4C ¹ ➳ IA6 ¹² ➔ S1 ⁸ (TC) [Skid Control ECU with Actuator]
14	_	_	_
15	WFSE	(P) Pink	➔ E6 ¹⁹ (WFSE) [Engine Control Module]
16	BAT	(R-B) Red/Black	➔ IJ ⁷ ➤ 7.5A Blade Fuse [OBD]