B210D-SYSTEM VOLTAGE HIGH

For a complete wiring diagram Refer to Section 8W.

When Monitored:
Ignition key in the run position.
Set Condition:
The SKREEM has detected the system voltage above 16 volts.

Possible Causes

FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT

Diagnostic Test

1. DETERMINING IF DTC IS CURRENT

NOTE: Diagnose any related Powertrain DTC(s) before continuing.

With a scan tool, read and record DTC(s).
With the scan tool, clear DTC(s).
Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 90 seconds per cycle.
Using the scan tool, read DTC(s).

Does the DTC reset?

Yes

Go To 3

No

Go to 2

2. INTERMITTENT CONDITION

NOTE: Check for any of the follow conditions:

Poor wire to terminal connection

Corroded terminals

Backed out or loose terminals

Broken wire internal to the insulation

Dirty (partial) module ground

With the ignition on, wiggle the related wires.
Using a scan tool, read DTC(s).

Does the DTC reset?

Yes

Repair the wiring as necessary.
Perform SKREEM VERIFICATION TEST.

No
DTC is not active at this time. Test complete.
3. FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT SHORTED TO BATTERY VOLTAGE

NOTE: A dirty (partial) ground can cause abnormal conditions within a system. Ensure the module has a good ground before continuing.

Turn the ignition off.
Disconnect the SKREEM harness connector.
Using a 12 volt test light connected to ground, probe the Fused Ignition Switch Output (Run-Start) circuit in the SKREEM harness connector.

Does the test light illuminate brightly?

Yes

Repair the Fused Ignition Switch Output (Run-Start) circuit for a short to voltage.
Perform SKREEM VERIFICATION TEST.

Replace and reprogram the SKREEM in accordance with the Service Information.
Perform SKREEM VERIFICATION TEST.