xyrtek

If I understand the starting circuit as well as I think I do, once the Starter Relay gets the signal from the BCM and actuates the issue must be on the IPDM E/R.

So replacing/troubleshooting the IPDM E/R seems like a logical step to me.

M/T : System Description INFOID:0000000011735111
• When the clutch interlock switch is turned ON, power is supplied to starter relay and starter control relay.
And BCM and IPDM E/R (CPU) detect clutch interlock switch condition by the inputted signal.
• When starter operating condition is satisfied, IPDM E/R turns starter control relay ON by starter control relay
control signal.
• When engine cranking condition is satisfied, BCM turns starter relay ON by starter relay control signal.
• Then battery power is supplied to starter motor (“S” terminal) through starter control relay and starter relay.
And IPDM E/R (CPU) detect starter relay condition by the inputted signal.

Since you have mentioned that you have B26E8 I would suggest triple-checking that.

Page 76 on SECURITY CONTROL SYSTEM