Description
ECM forcibly switches to the mode that inhibits engine start, when engine start operation is performed 5 times or more while communication between ECM and BCM is not normal.
DTC DETECTION LOGIC
NOTE: If DTC P1610 is displayed with other DTC (for BCM or ENGINE), first
perform the trouble diagnosis for other DTC.

DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check DTC in "Self Diagnostic Result" mode of ENGINE using CONSULT.
Is DTC detected?
YES >> Go to SEC "Diagnosis Procedure".
NO >> Inspection End.
1.CHECK ENGINE START FUNCTION
If detected, erase the DTC after fixing.
>> Inspection End.
P0506 ISC system
Description
The ECM controls the engine idle speed to a specified level through the fine
adjustment of the air, which is let
into the intake manifold, by operating the electric throttle control actuator.
The operating of the throttle valve is
varied to allow for optimum control of the engine ...
Ignition timing
Inspection
1.CHECK IGNITION TIMING
1. Attach timing light (A) to loop wire (1) as
shown.
2. Check ignition timing.
1 : Timing indicator
>> INSPECTION END
...