B2107

B2107 IGNITION SWITCH SENSE INPUT CIRCUIT/PERFORMANCE

B2107 - Ignition Switch Sense Input Circuit/Performance:

WHEN MONITORED
With the ignition on.

SET CONDITION
The Cluster detects an Ignition Switch performance fault.

POSSIBLE CAUSES
- (G900) Ignition switch sense return circuit short to ground
- (G900) Ignition switch sense return circuit open
- (G20) Ignition switch sense signal circuit short to ground
- (G20) Ignition switch sense signal circuit open
- Ignition switch
- Instrument cluster

Diagnostic Test

1. TEST FOR AN INTERMITTENT CONDITION

NOTE: Troubleshoot any Ignition, Battery, or Cluster DTCs before proceeding.

Turn the ignition on.
Using the scan tool, record and erase DTCs.
Turn the ignition off, wait 10 seconds then turn the ignition on.
Using the scan tool, read DTCs.

Q: Does the scan tool display: B2107-IGNITION SWITCH SENSE INPUT CIRCUIT/PERFORMANCE?

YES: Go To 2
NO: The condition that caused this code to set is not present at this time. Using the wiring diagram as a guide, inspect the wiring and connectors for an intermittent condition. Operate the system several times and recheck for active DTCs. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test




2. CHECK IGNITION SWITCH OPERATION

Disconnect the Ignition Switch harness connector.
Measure the voltage of the G20 and G900 Ignition Switch Sense circuits at the Ignition Switch harness connector.

Q: Is the voltage above 4.4 volts?

YES: Replace the Ignition Switch. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 3




3. (G900) IGNITION SWITCH SENSE RETURN CIRCUIT SHORT TO GROUND

Turn the ignition off.
Disconnect the Ignition Switch harness connector.
Disconnect the Instrument Cluster C2 harness connector.
Measure the resistance between ground and the (G900) Ignition Switch Sense Return circuit.

Q: Is the resistance below 10K ohms?

YES: Repair the (G900) Ignition Switch Sense Return circuit for a short to ground. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 4




4. (G900) IGNITION SWITCH SENSE RETURN CIRCUIT OPEN

Measure the resistance of the (G900) Ignition Switch Sense Return circuit.

Q: Is the resistance above 10K ohms?

YES: Repair the (G900) Ignition Switch Sense Return circuit for an open. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 5




5. (G20) IGNITION SWITCH SENSE SIGNAL CIRCUIT SHORT TO GROUND

Turn the ignition off.
Disconnect the Ignition Switch harness connector.
Disconnect the Instrument Cluster C2 harness connector.
Measure the resistance between ground and the (G20) Ignition Switch Sense Signal circuit.

Q: Is the resistance below 10K ohms?

YES: Repair the (G20) Ignition Switch Sense Signal circuit for a short to ground. BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 6




6. (G20) IGNITION SWITCH SENSE SIGNAL CIRCUIT OPEN

Measure the resistance of the (G20) Ignition Switch Sense Signal circuit.

Q: Is the resistance above 10K ohms?

YES: Repair the (G20) Ignition Switch Sense Signal circuit for an open. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace the Instrument Cluster. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test