Page 561 - 2019 SHOP MANUAL CRF1000/A/D

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IMMOBILIZER SYSTEM (HISS)
3. Diagnostic Code Inspection
Perform the diagnostic code indication procedure (page 23-7).
Check that the HISS indicator comes on then it starts blinking.
Is the indicator brinks or stay lit?
BRINKS–Read the diagnostic code (page 23-7).
STAY LIT–GO TO STEP 4.
4. TXD Line Inspection
Check the TXD line (Black wire) between the ECM/PCM and combination meter connectors (page 22-14).
Is the inspection normal?
NO – Open or short circuit in Black wire
YES – GO TO STEP 5.
5. CKP sensor Line Open Circuit Inspection
Check the CKP sensor lines (page 23-10).
Is there continuity?
YES – • Open circuit in the Yellow wire
• Open circuit in the White/yellow wire
NO – Faulty PCM

Diagnostic code is indicated (Code signals cannot send or receive)
1. Immobilizer Receiver Power Input Line Inspection
Check the immobilizer receiver power input line (page 23-11).
Is the input line normal?
YES – GO TO STEP 2.
NO – Open or short circuit in the Yellow/red wire
2. Immobilizer Receiver Ground Line Inspection
Check the immobilizer receiver ground line (page 23-11).
Is the ground line normal?
YES – GO TO STEP 3.
NO – • CRF1000/A: Open circuit in the Gray/black wire
• CRF1000D: Open circuit in the Gray wire
3. Immobilizer Receiver Signal Line Inspection
Check the immobilizer receiver signal lines (page 23-11).
Are the signal lines normal?
YES – GO TO STEP 4.
NO – Open or short circuit in the Pink or Blue/orange wire
4. Immobilizer Receiver Inspection
Replace the immobilizer receiver with a know good one (page 23-12).
Perform the diagnostic code indication procedure (page 23-7).
Is the Diagnostic code indicated?
YES – Replace the PCM with a known good one and recheck.
NO – Faulty original immobilizer receiver

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