Acura RL. Manual - part 679

WIRE COLOR SPECIFICATION

Fig. 51: Checking Continuity Between Body Ground And PCM Connector Terminal
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES - Go to step 37.

NO - Repair open in the wire between the PCM and the ignition coil, then go to step 55.

37. Reconnect the ignition coil 3P connector and PCM connector A (31P).

38. Do an engine compression and a cylinder leakdown test.

Did the engine pass both tests?

YES - Go to step 39.

NO - Repair the engine, then go to step 55.

39. Do the VTEC rocker arm test (see VTEC ROCKER ARM TEST ).

Did the engine pass the test?

YES - Go to step 40.

NO - Repair the VTEC rocker arm, then go to step 55.

40. Turn the ignition switch OFF.

41. Jump the SCS line with the HDS.

PROBLEM CYLINDER DTC PCM TERMINAL WIRE COLOR
No. 1

P0301 A20

YEL/GRN

No. 2

P0302 A19

BLU/RED

No. 3

P0303 A18

WHT/BLU

No. 4

P0304 A17

BRN

No. 5

P0305 A16

BLK/RED

No. 6

P0306 A15

BRN/WHT

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

Friday, June 05, 2009 2:34:58 PM

Page 58

42. Disconnect PCM connector A (31P).

43. Turn the ignition switch ON (II).

44. Measure voltage between body ground and the appropriate PCM connector terminal (see WIRE

COLOR SPECIFICATION).

WIRE COLOR SPECIFICATION

Fig. 52: Measuring Voltage Between Body Ground And PCM Connector Terminal
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES - Go to step 54.

NO - Go to step 45.

45. Turn the ignition switch OFF.

46. Remove the intake manifold (see REMOVAL ).

47. Disconnect the injector 2P connector from the problem cylinder.

48. Turn the ignition switch ON (II).

49. Measure voltage between injector 2P connector terminal No. 2 and body ground.

PROBLEM CYLINDER DTC PCM TERMINAL WIRE COLOR
No. 1

P0301 A21

BRN

No. 2

P0302 A31

RED

No. 3

P0303 A30

BLU

No. 4

P0304 A29

YEL

No. 5

P0305 A28

BLK/RED

No. 6

P0306 A27

WHT/BLU

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

Friday, June 05, 2009 2:34:58 PM

Page 59

Fig. 53: Measuring Voltage Between Injector 2P Connector Terminal No. 2 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES - Go to step 50.

NO - Repair open in the wire between the injector and PGM-FI main relay 1 (Fl MAIN), then go to
step 55.

50. Turn the ignition switch OFF.

51. Check for continuity between body ground and the appropriate PCM connector terminal (see WIRE

COLOR SPECIFICATION).

WIRE COLOR SPECIFICATION

Fig. 54: Checking Continuity Between Body Ground And PCM Connector Terminal
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

PROBLEM CYLINDER DTC PCM TERMINAL WIRE COLOR
No. 1

P0301 A21

BRN

No. 2

P0302 A31

RED

No. 3

P0303 A30

BLU

No. 4

P0304 A29

YEL

No. 5

P0305 A28

BLK/RED

No. 6

P0306 A27

WHT/BLU

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

Friday, June 05, 2009 2:34:58 PM

Page 60

YES - Repair short in the wire between the PCM and the injector, then go to step 55.

NO - Go to step 52.

52. Connect appropriate injector 2P connector terminal No. 1 to body ground with a jumper wire (see

WIRE COLOR SPECIFICATION).

WIRE COLOR SPECIFICATION

Fig. 55: Connecting Injector 2P Connector Terminal No. 1 To Body Ground With Jumper Wire
Courtesy of AMERICAN HONDA MOTOR CO., INC.

53. Check for continuity between body ground and the appropriate PCM connector terminal (see WIRE

COLOR SPECIFICATION).

WIRE COLOR SPECIFICATION

PROBLEM CYLINDER DTC WIRE COLOR
No. 1

P0301 BRN

No. 2

P0302 RED

No. 3

P0303 BLU

No. 4

P0304 YEL

No. 5

P0305 BLK/RED

No. 6

P0306 WHT/BLU

PROBLEM CYLINDER DTC PCM TERMINAL WIRE COLOR
No. 1

P0301 A21

BRN

No. 2

P0302 A31

RED

No. 3

P0303 A30

BLU

No. 4

P0304 A29

YEL

No. 5

P0305 A28

BLK/RED

No. 6

P0306 A27

WHT/BLU

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

Friday, June 05, 2009 2:34:58 PM

Page 61

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