Page 132 - 2019 SHOP MANUAL CRF1000/A/D

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PGM-FI SYSTEM
3. Fuel Injector Resistance Inspection
Turn the ignition switch OFF.
Measure the resistance at the injector side 2P [1]
connector [1].
Standard: 11 – 13 Ω (20°C/68°F)
Is the resistance within standard value?
YES – GO TO STEP 4.
NO – Faulty fuel injector

4. Fuel Injector Signal Line Open Circuit Inspection
Disconnect the ECM/PCM 33P (Black) connector
(page 4-39). [2]
Check for continuity between the wire harness side
2P connector [1] and 33P (Black) connector [2].
TOOL: No.1: B3
Test probe 07ZAJ-RDJA110
No.1: P/Bl
Connection:
No.1: Pink/black – B3
No.2: Pink/blue – B4
No.2: P/Bu No.2: B4
Is there continuity?
YES – GO TO STEP 5.
NO – • Open circuit in the Pink/black wire [1]
• Open circuit in the Pink/blue wire
5. Fuel Injector Signal Line Short Circuit Inspection
Check for continuity between the wire harness side
2P connector [1] and ground. [1]
Connection:
No.1: Pink/black – Ground
No.2: Pink/blue – Ground
Is there continuity?
No.1: P/Bl
YES – • Short circuit in the Pink/black wire No.2: P/Bu
• Short circuit in the Pink/blue wire
NO – Replace the ECM/PCM with a known good
one (page 4-39) and recheck.

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