DTC B2212

B3E090201072W35

DTC B2212

Panel light control circuit failure

DETECTION CONDITION

Input voltage from the panel light control switch is excessively low or high

POSSIBLE CAUSE

• Open circuit in wiring harness between PJB terminal J-03 AJ and panel light control switch terminal H
• Short to power supply in wiring harness between PJB terminal J-03 AJ and panel light control switch terminal H
• Short to GND in wiring harness between PJB terminal J-03 AJ and panel light control switch terminal H
• Panel light control switch malfunction
• PJB malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT PANEL LIGHT CONTROL SWITCH CONNECTOR
• Turn the ignition switch off.
• Disconnect the panel light control switch connector.
• Inspect the panel light control switch connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 7.
No
Go to the next step.
2
INSPECT PJB CONNECTOR
• Disconnect the PJB connector.
• Inspect the PJB connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 7.
No
Go to the next step.
3
INSPECT PANEL LIGHT CONTROL SWITCH CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between PJB terminal J-03 AJ (wiring harness-side) and panel light control switch terminal H (wiring harness-side).
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to Step 7.
4
INSPECT PANEL LIGHT CONTROL SWITCH CIRCUIT FOR SHORT TO GND
• Inspect for continuity between PJB terminal J-03 AJ (wiring harness-side) and body GND.
• Is there continuity?
Yes
Repair or replace the wiring harness for a possible short to GND, then go to Step 7.
No
Go to the next step.
5
INSPECT PANEL LIGHT CONTROL SWITCH CIRCUIT FOR SHORT TO POWER SUPPLY
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between PJB terminal J-03 AJ (wiring harness-side) and body GND.
• Is the voltage B+?
Yes
Repair or replace the wiring harness for a possible short to power supply, then go to Step 7.
No
Go to the next step.
6
INSPECT PANEL LIGHT CONTROL SWITCH
• Inspect the panel light control switch.
• Is there any malfunction?
Yes
Replace the panel light control switch, then go to the next step.
No
Go to the next step.
7
VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PJB memory using the WDS or equivalent.
• Perform the self-test.
(See PJB SELF-TEST.)
• Is the same DTC present?
Yes
Replace the PJB.
No
DTC troubleshooting completed.