B2124
B2124-IGNITION RUN CONTROL 1 CIRCUIT OPENB2124 - Ignition Run Control 1 Circuit Open:
WHEN MONITORED
With the ignition on.
SET CONDITION
(F100) Fused Ignition Switch Output (Run) circuit Open.
POSSIBLE CAUSES
- Check the (F100) fused ignition switch output (run) circuit for an open
- ORC
- TIPM
Diagnostic Test
1. CHECK FOR ACTIVE DTC
With the scan tool, read the active DTC's.
Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 10 seconds.
With the scan tool, read the active DTC's.
Q: Does the scan tool display this DTC as active?
YES: Go To 2
NO: If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2. CHECK FOR ACTIVE DTC B2124-IGNITION RUN CONTROL 1 CIRCUIT OPEN WITH THE OCCUPANT RESTRAINT CONTROLLER MODULE DISCONNECTED
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.
Turn the ignition off.
Disconnect the ORC C2 harness connector.
Connect a jumper wire at the 8443 Load Tool from the (F100) Fused Ignition Switch Output (Run) circuit to ground.
Turn the ignition on. Reconnect the battery.
With the scan tool, read DTCs.
Q: Does the scan tool display active: B2124-IGNITION RUN CONTROL 1 CIRCUIT OPEN?
YES: Go to 3
NO: Replace the Occupant Restraint Controller Module. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
3. CHECK THE (F100) FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT FOR AN OPEN
Turn the ignition off.
Disconnect the TIPM C7 harness connector.
Measure the resistance of the (F100) Fused Ignition Switch Output (RUN) circuit.
Q: Is the resistance above 10K ohms?
YES: Repair the (F100) Fused Ignition Switch Output (RUN) circuit for an open. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace the TIPM. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test