B2123-IGNITION RUN CONTROL CIRCUIT HIGH
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
Continuously.
- Set Condition:
When the Cluster senses a high condition on the (F102) Ignition Run Relay Control circuit for over 10 seconds, this code will set.
| Possible Causes |
| (F102) IGNITION RUN RELAY CONTROL CIRCUIT SHORT TO BATTERY |
| JUNCTION BLOCK |
| INSTRUMENT CLUSTER |
Diagnostic Test
1. TEST FOR INTERMITTENT CONDITIONWith the scan tool, record and erase DTC's
Cycle the ignition from on to off.
Turn the ignition on.
With the scan tool, read DTC's.
Does the scan tool display: B2123-IGNITION RUN CONTROL CIRCUIT HIGH?
Yes
- Go To 2
No
- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
2. IGNITION RUN RELAY SHORTED TO BATTERY
Turn the ignition off.
Disconnect the Cluster C2 connector.
Momentarily connect a jumper wire between the (F102) Ignition Run Relay Control circuit and the (Z905) Ground circuit in the Cluster C2 connector.
Did the relay actuate?
Yes
- Replace the Instrument Cluster in accordance with Service Information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Go To 3
3. (F102) IGNITION RUN RELAY CONTROL CIRCUIT SHORTED TO BATTERY
Disconnect the Junction Block C2 connector (on top of junction block).
Measure the voltage between ground and the (F102) Ignition Run Relay Control circuit in the Cluster C2 connector.
Turn the ignition on.
Is there any voltage present?
Yes
- Repair the (F102) Ignition Run Relay Control circuit for a short to voltage.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Replace the Junction Block in accordance with Service Information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)