PGM-FI SYSTEM
4-30
DTC 29-1 {IACV)
• Before starting the inspection, check for loose or
poor contact
on
the IACV 4P (Black) connector and
recheck the
OTC.
1. Recheck DTC
Clear the DTC's (page 4-12).
Start the engine and recheck the
OTC.
Is the DTC 29-1 indicated?
YES - GO TO STEP
2.
NO
- • Intermittent failure
• Loose or poor contact
on
the IACV 4P
(Black) connector
2. IACV Short Circuit Inspection
Turn the ignition switch OFF.
Disconnect the IACV 4P (Black) connector.
Check for continuity between the IACV 4P (Black)
connector [1] of the wire harness side and ground.
CONNECTION: Light green/red - Ground
Brown/red-
Ground
Gray/red - Ground
Black/red - Ground
STANDARD: No continuity
Are
there continuities?
YES - • Short circuit
in
the Light green/red or
Brown/red wire
Short circuit
in
the Gray/red or Black/
red
wire
NO - GO TO STEP
3.
3. IACV Circuit Continuity Inspection
Disconnect the ECM
21
P (Black) connector.
Check the continuity between the ECM
21
P (Black)
connector
[1]
terminals and IACV 4P (Black)
connector [2] terminals of the wire harness side.
CONNECTION:
Light green/red
-A17
(Light green/red)
Brown/red - A 10 (Brown/red)
Gray/red - A3 (Gray/red)
Black/red - A
11
(Black/red)
STANDARD: Continuity
TOOL:
Test probe, 2 pack 07ZAJ-RDJA 110
Are
there continuity?
YES - GO TO STEP
4.
NO
- • Open circuit
in
the Light green/red or
Brown/red wire
Open circuit
in
the Gray/red or Black/
red
wire
[2]
Light green/
red
Black/red
(A 11)
[1]
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