Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SELF DIAGNOSTIC RESULT
Check DTC in "Self Diagnostic Result" mode of "IPDM E/R" using CONSULT.

What is the display history of DTC "B210C"?

"CRNT"

GO TO 3.

"PAST"

GO TO 2.
CHECK BATTERY VOLTAGE
Measure the battery voltage.

Which is the measurement result?

More than 12.4 V

GO TO 5

Less than 12.4 V

Perform battery inspection. Refer to How to Handle Battery (VR30DDTT) or How to Handle Battery (2.0L turbo gasoline engine).

CHECK P/N POSITION SIGNAL CIRCUIT VOLTAGE

Turn ignition switch ON
Selector lever is in P position.
Measure the voltage between IPDM E/R harness connector and ground.

(+)		(-)	Condition		Voltage
IPDM E/R
Connector	Terminal
E121	37	Ground	Shift position	P or N	9 - 16 V

Which is the measurement result?

Approx. 12 V

Replace IPDM E/R. Refer to Removal and Installation .

Approx. 0 V

GO TO 4.

CHECK P/N POSITION SIGNAL CIRCUIT

Turn ignition switch OFF
Disconnect IPDM E/R connector and BCM connector.

Check continuity between IPDM E/R harness connector and BCM harness connector.

IPDM E/R		BCM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E121	37	M13	39	Existed

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

Repair or replace harness.

CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to Intermittent Incident .

INSPECTION END