Dtc 33-2 (Eeprom) - Honda TRX500FM Service Manual

PGM-FI SYSTEM
3. IACV Circuit Continuity Inspection
Disconnect the PCM/ECM 33P
(Gray)
connector [1).
Check for continuity between the wire harness side [1J
IACV 4P (Black) connector [21 and PCMIECM 33P
(Gray) connector terminals.
Connection: 819 - Yellow
829 - Yellow/green
B30 - Yellow/blue
831 - Brown/yellow
TOOL :
Test probe 07ZAJ·RDJA110
Are there continuities?
YES - GO TO STEP 4.
NO Open circuil in the Yellow or Yellowl
green wire.
Open circuit in the Yellow/blue or
Brown/yellow wire.
4. IACV Resistance Inspection at PCM/ECM
Connector
Measure the resistance between the wire harness
side PCM/ECM 33P (Gray) connector [1]lerminals.
Connection: 819 - 829
B30 - 831
TOOL:
Test probe 07ZAJ·RDJA110
Standard : 100 -120 0 (25 G
Cf7rF)
Is the res/stance within 100 - 120
{J
(20G C/68 G F)?
YES - Replace the PCM/ECM with a known good
one (page 4-34), and recheck.
NO - Faulty IACV.
OTe 33-2 (EEPROM)
1. Recheck
orc
Erase the DTC (page 4-12).
Turn the ignition switch ON and engine stop switch
Recheck the PCM/ECM EEPROM with the HDS
pocket tes ter.
Is the DTe
33-2
indicated?
YES - Replace the PCM/ECM with a known good
one (page 4-34), and recheck.
NO - Intermittent failure.
B19
Yellow Yellow!
B30
gleeo
B31
B31
'-----'\--=-{:Q) -- ---'
B29
B19
B29
B30
[2[
[11
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