Acura CSX. Manual — part 133
02
03
+
−
−
−
−
−
−
Connector
Terminal
YES
NO
YES
NO
YES
NO
11-206
PGM-FI System
DATA LINK CONNECTOR (DLC)
K-LINE (LT BLU)
JUMPER WIRE
DATA LINK CONNECTOR (DLC)
B (WHT)
23. Connect DLC terminal No. 7 to body ground with a
jumper wire.
24. Check for continuity between body ground and
these connector terminals:
SRS unit A (28P)
No. 24
(LT BLU)
ABS modulator-control unit
25P (with ABS)
No. 10
(LT BLU)
VSA modulator-control unit
37P (with VSA system)
No. 26
( LT BLU )
EPS control unit D (28P)
No. 17
(LT BLU)
Immobilizer-keyless control
unit 7P
No. 5 (LT BLU)
TPMS control unit 20P
No. 7 (LT BLU)
Audio unit 17P
No. 6 (LT BLU)
Under-dash fuse/relay box Q
(16P)
No. 8 (LT BLU)
Replace the part which cannot communicate
with the HDS.
Repair open in the wire between the DLC (K-
line) and the appropriate connector.
25. Do the gauge self-diagnostic function (see page
22-241).
26. Check for B-CAN system DTCs without the HDS
(see page 22-74).
Go to step 39.
Go to step 27.
27. Turn the ignition switch to LOCK (0).
28. Disconnect the HDS from the DLC.
29. Measure the voltage between DLC terminal No. 16
and body ground.
Go to step 30.
Repair open in the wire between DLC terminal
No. 16 and the No. 23 BACK UP (10 A) fuse in the
under-hood fuse/relay box.
Terminal side of female terminals
Terminal side of female terminals
Is ther e continuity between the body gr ound and
each of the ter minals in the char t?
Is DT C B1168, B1169, and/ or B117 8 indicated?
Is ther e batter y voltage?
08/08/21 14:21:55 61SNR030_110_0206
04
05
06
07
+
−
−
−
−
YES
NO
YES
NO
11-207
DATA LINK CONNECTOR (DLC)
B (WHT)
GND (BLK)
DATA LINK CONNECTOR (DLC)
JUMPER WIRE
CANH (WHT)
ECM/PCM CONNECTOR A (44P)
CANH (WHT)
DATA LINK CONNECTOR (DLC)
CANL (RED)
JUMPER WIRE
30. Measure the voltage between DLC terminals No. 4
and No. 16.
Go to step 31.
Repair open in the wire between DLC terminal
No. 4 and body ground (G502) (see page 22-32).
31. Connect the HDS to the DLC (see page 11-3).
32. Jump the SCS line with the HDS.
33. Disconnect ECM/PCM connector A (44P).
34. Disconnect the HDS from the DLC.
35. Connect DLC terminal No. 6 to body ground with a
jumper wire.
36. Check for continuity between ECM/PCM connector
terminal A36 and body ground.
Go to step 37.
Repair open in the wire between the ECM/
PCM (A36) and DLC terminal No. 6.
37. Connect DLC terminal No. 14 to body ground with a
jumper wire.
Terminal side of female terminals
Terminal side of female terminals
Terminal side of female terminals
Terminal side of female terminals
Is ther e batter y voltage?
Is ther e continuity?
08/08/21 14:21:56 61SNR030_110_0207
08
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
11-208
PGM-FI System
ECM/PCM CONNECTOR A (44P)
CANL (RED)
38. Check for continuity between ECM/PCM connector
terminal A37 and body ground.
Update the ECM/PCM if it does not have the
latest software (see page 11-227), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original ECM/
PCM (see page 11-228).
Repair open in the wire between the ECM/
PCM (A37) and DLC terminal No. 14.
39. Try to start the engine.
Go to the F-CAN circuit troubleshooting
(see page 11-191).
Go to step 40.
40. Turn the ignition switch to LOCK (0).
41. Check the No. 2 IG MAIN (50 A) fuse in the under-
hood fuse/relay box.
Repair open in the wire between the No. 2 IG
MAIN (50 A) fuse and the ignition switch. If the wire
is OK, go to step 42.
Repair short in the wire between the No. 2 IG
MAIN (50 A) fuse and the under-hood fuse/relay
box. Also replace the No. 2 IG MAIN (50 A) fuse.
Terminal side of female terminals
Is ther e continuity?
Does the engine star t and idle smoothly?
Is the f use OK ?
08/08/21 14:21:56 61SNR030_110_0208
*01
05
+
+
−
−
−
−
YES
NO
YES
NO
11-209
C
PGM-FI MAIN RELAY 1 4P CONNECTOR
B
B
42. Inspect the No. 19 FI MAIN (15 A) fuse in the under-
hood fuse/relay box.
Go to step 49.
Go to step 43.
43. Remove the blown No. 19 FI MAIN (15 A) fuse from
the under-hood fuse/relay box.
44. Remove PGM-FI main relay 1 (C) from the under-
hood fuse/relay box.
45. Check for continuity between body ground and
PGM-FI main relay 1 4P connector terminals No. 1
and No. 3 individually.
Replace the under-hood fuse/relay box
(see page 22-65). Also replace the No. 19 FI MAIN
(15 A) fuse.
Go to step 46.
Terminal side of female terminals
Is the f use OK ?
Is ther e continuity?
08/08/21 14:21:56 61SNR030_110_0209
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