B2101

B2101-IGNITION RUN/START INPUT LOW

For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
With the ignition switch on.

- Set Condition:
The Sentry Key Remote Entry Module (SKREEM) has detected the ignition switch input voltage below a calibrated value.





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 the SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests.

No

DTC is not active at this time. Test complete.

3. FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPENED
NOTE: Check the related fuses to the Fused Ignition Switch Output (Run-Start) circuit. If the fuse is found to be open, repair the circuit for a shorted condition.

Turn the ignition off.
Disconnect the SKREEM harness connector.
Turn the ignition on.
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

- Go to 4

No

- Repair the Fused Ignition Switch Output (Run-Start) circuit for an open.
- Perform the SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests.

4. SKREEM
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.
Reconnect the SKREEM connector
Back probe the Fused Ignition Switch Output (Run-Start) circuit.
Start the engine.
Using the scan tool, view battery voltage under Data Display in the Engine category.
Compare the voltage on the scan tool to the voltage reading on the voltmeter.
Is the voltage on the scan tool equal to the voltmeter reading +/-.5 volt?

Yes

- Replace and program the Sentry Key Remote Entry Module (SKREEM).
- Perform the SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests.

No

- Repair the Fused Ignition Switch Output (Run-Start) circuit for high resistance.
- Perform the SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests.