Acura RSX Honda Integra. Manual — part 139

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YES

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11-262

PGM-FI System

MIL Circuit Troubleshooting (cont’d)

A

22. Turn the ignition switch OFF.

23. Connect the HDS (see page 11-3).

24. Turn the ignition switch ON (II), and read the HDS.

Update the ECM/PCM if it does not have the

latest software, or substitute a known-good ECM/
PCM (see page 11-6), then recheck. If the symptom/
indication goes away with a known-good ECM/PCM,
replace the original ECM/PCM (see page 11-284).

Go the ‘‘DLC Circuit Troubleshooting’’

(see page 11-275).

25. Turn the ignition switch OFF.

26. Inspect the No. 20 IG (USA: 40 A, Canada: 50 A)

fuse in the under-hood fuse/relay box.

Repair open in the wire between the No. 20

IG (USA: 40 A, Canada: 50 A) fuse and the ignition
switch. If the wires are OK, go to step 27.

Repair short in the wire between No. 20 IG

(USA: 40 A, Canada: 50 A) fuse and the under-hood
fuse/relay box. Also replace the No. 20 IG (USA:
40 A, Canada: 50 A) fuse.

27. Turn the ignition switch OFF.

28. Inspect the No. 6 ECU (ECM/PCM) (20 A) fuse in the

under-hood fuse/relay box.

Go to step 35.

Go to step 29.

29. Remove the blown No. 6 ECU (ECM/PCM) (20 A)

fuse in the under-hood fuse/relay box.

30. Remove the glove box (see page 20-67). Remove

PGM-FI main relay 1 (FI MAIN) (A).

Does the HDS communicate with the ECM/ PCM?

Is the f use OK ?

Is the f use OK ?

05/06/27 17:38:38 61S6M040_110_0262

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11-263

PGM-FI MAIN RELAY 1
(FI MAIN)
4P CONNECTOR

B

(WHT/BLK)

B

(WHT/
BLK)

PGM-FI MAIN RELAY 1
(FI MAIN)
4P CONNECTOR

IGP1
(YEL/BLK)

31. Check for continuity between body ground and

PGM-FI main relay 1 (FI MAIN) 4P connector
terminals No. 2 and No. 4 individually.

Repair short in the wire between the No. 6

ECU (ECM/PCM) (20 A) fuse and PGM-FI main relay
1 (FI MAIN). Also replace the No. 6 ECU (ECM/PCM)
(20 A) fuse.

Go to step 32.

32. Disconnect each of the components or the

connectors below, one at a time, and check for
continuity between the PGM-FI main relay 1
(FI MAIN) 4P connector terminal No. 1 and body
ground.

• PGM-FI main relay 2 (FUEL PUMP)
• ECM/PCM connector A (31P)
• Each injector 2P connector
• Idle air control valve 3P connector
• Camshaft position (CMP) sensor B 3P connector
• Crankshaft position (CKP) sensor 3P connector

Go to step 33.

Replace the part that made continuity to body

ground go away when disconnected. If the item is
the ECM/PCM, update the ECM/PCM if it does not
have the latest software, or substitute a known-
good ECM/PCM (see page 11-6), then recheck. If the
symptom/indication goes away with a known-good
ECM/PCM, replace the original ECM/PCM (see page
11-284).
Also replace the No. 6 ECU (ECM/PCM) (20 A) fuse.

(cont’d)

Wire side of female terminals

Wire side of female terminals

Is ther e continuity?

Is ther e continuity?

05/06/27 17:38:38 61S6M040_110_0263

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YES

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11-264

PGM-FI System

MIL Circuit Troubleshooting (cont’d)

PGM-FI MAIN RELAY 1
(FI MAIN)
4P CONNECTOR

IGP1
(YEL/BLK)

ECM/PCM CONNECTOR E (31P)

IG1
(YEL/BLK)

33. Disconnect the connectors of all these components:

• PGM-FI main relay 2 (FUEL PUMP)
• ECM/PCM connector A (31P)
• Injectors
• Idle air control valve
• Camshaft position (CMP) sensor B
• Crankshaft position (CKP) sensor

34. Check for continuity between PGM-FI main relay 1

(FI MAIN) 4P connector terminal No. 1 and body
ground.

Repair short in the wire between PGM-FI

main relay 1 (FI MAIN) and each item. Also replace
the No. 6 ECU (ECM/PCM) (20 A) fuse.

Replace PGM-FI main relay 1 (FI MAIN). Also

replace the No. 6 ECU (ECM/PCM) (20 A) fuse.

35. Inspect the No. 17 FUEL PUMP (15 A) fuse in the

under-dash fuse/relay box.

Go to step 48.

Go to step 36.

36. Remove the blown No. 17 FUEL PUMP (15 A) fuse

in the under-dash fuse/relay box.

37. Jump the SCS line with the HDS.

38. Disconnect ECM/PCM connector E (31P).

39. Check for continuity between ECM connector

terminal E9 and body ground.

Go to step 40.

Replace the No. 17 FUEL PUMP (15 A) fuse,

and update the ECM/PCM if it does not have the
latest software, or substitute a known-good ECM/
PCM (see page 11-6), then recheck. If the symptom/
indication goes away with a known-good ECM/PCM,
replace the original ECM/PCM (see page 11-284).

Wire side of female terminals

Wire side of female terminals

Is ther e continuity?

Is the f use OK ?

Is ther e continuity?

05/06/27 17:38:38 61S6M040_110_0264

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YES

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11-265

A

ECM/PCM CONNECTOR E (31P)

IG1
(YEL/BLK)

FUEL PUMP 5P CONNECTOR

FUEL PUMP
(YEL/BLU)

A

40. Remove the glove box (see page 20-67), then

remove PGM-FI main relay 2 (FUEL PUMP) (A).

41. Check for continuity between ECM/PCM connector

terminal E9 and body ground.

Repair short in the wire between the No. 17

FUEL PUMP (15 A) fuse and the ECM/PCM (E9), or
PGM-FI main relay 2 (FUEL PUMP). Also replace the
No. 17 FUEL PUMP (15 A) fuse.

Go to step 42.

42. Remove the rear seat cushion (see page 20-85).

43. Remove the access panel from the floor.

44. Disconnect the fuel pump 5P connector.

45. Check for continuity between fuel pump 5P

connector terminal No. 5 and body ground.

Repair short in the wire between the fuel

pump and PGM-FI main relay 2 (FUEL PUMP). Also
replace the No. 17 FUEL PUMP (15 A) fuse.

Go to step 46.

46. Reinstall PGM-FI main relay 2 (FUEL PUMP) (A).

(cont’d)

Wire side of female terminals

Wire side of female terminals

Is ther e continuity?

Is ther e continuity?

05/06/27 17:38:38 61S6M040_110_0265