Subaru Crosstrek Service Manual: Dtc p000b "b" camshaft position slow response bank 1
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC P000B "B" CAMSHAFT POSITION SLOW RESPONSE BANK 1
NOTE:
For the diagnostic procedure, refer to DTC P0014. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P0014 "B" CAMSHAFT POSITION - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE BANK 1">
1. OUTLINE OF DIAGNOSIS
Detect the exhaust AVCS system malfunction.
Judge NG when the amount of exhaust AVCS actual timing advance does not approach the amount of exhaust AVCS target timing advance.
2. EXECUTION CONDITION
Secondary parameters | Execution condition |
Battery voltage | ≥ 10.9 V |
Exhaust AVCS control | In operation |
|Target timing advance change amount (per 64 ms)| | < 3.2 °CA |
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously when the engine speed increases and exhaust AVCS operates.
4. DIAGNOSTIC METHOD
When the differences of target timing advance amount and actual timing advance amount is calculated during exhaust AVCS control, and the difference per predetermined time is the specified value or larger.
Judge as NG when the following conditions are established within the predetermined time.
Malfunction Criteria | Threshold Value |
Σ|(Target position − Actual position)| | > 4000 °CA (Bank 1) > 4000 °CA (Bank 2) |
Time needed for diagnosis: Less than 1 second
Malfunction indicator light illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
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