Possible Causes

A passenger-side air bag module squib No. 2 circuit open or low resistance could be caused by an open or high resistance on Red/White wire (circuit 1518) or Green/Red wire (circuit 1519), circuits 1518 and 1519 shorted together, passenger-side air bag module fault or an RCM internal fault.

1. Check for hard or intermittent DTC
   
   Ensure ignition is off. Connect scan tool to DLC. See USING SCAN TOOL  under DIAGNOSTICS. Turn ignition switch to RUN position. Retrieve and record any continuous DTCs. See RETRIEVING FAULT CODES  under DIAGNOSTICS. Perform on-demand self-test. See ON-DEMAND SELF-TEST  under DIAGNOSTICS. If DTC B2233 or B2235 was retrieved during on-demand self-test, fault is hard. Go to next step. If DTC B2233 or B2235 was not retrieved, fault is intermittent. Go to step  5 .
2. Check passenger-side air bag
   
   Turn ignition off. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Turn ignition switch to RUN position. Perform on-demand self-test. If DTC B2235 is retrieved, go to step  4 . If DTC B2233 is retrieved, go to next step. If DTC B2233 or B2235 is not retrieved, replace passenger-side air bag module. Go to step  6 .
   CAUTION: DO NOT remove or separate shorting bars from RCM harness connector C310B.
   NOTE: An extremely low resistance is expected for the following test. Zero ohmmeter before taking measurement.
3. Check for open in circuit
   
   Turn ignition off. Access RCM and disconnect harness connector C310B. See RESTRAINTS CONTROL MODULE  under REMOVAL & INSTALLATION. Disconnect air bag simulator from passenger-side air bag module harness connector. Measure resistance between Red/White and Green/Red wires on vehicle harness side of passenger-side air bag module harness connector. If resistance is more than 1.5 ohms, repair high resistance in Red/White and/or Green/Red wires. Go to step  6 . If resistance is less than 1.5 ohms, replace RCM. Go to step  6 .
   CAUTION: DO NOT remove or separate shorting bars from RCM harness connector C310B.
   NOTE: An extremely low resistance is expected for the following test. Zero ohmmeter before taking measurement.
4. Check for low resistance in circuit
   
   Turn ignition off. Access RCM and disconnect harness connector C310B. See RESTRAINTS CONTROL MODULE  under REMOVAL & INSTALLATION. Remove air bag simulator from passenger-side air bag module harness connector. Measure resistance between Red/White and Green/Red wires on vehicle harness side of passenger-side air bag module harness connector. If resistance is less than 1.5 ohms, repair low resistance vehicle harness between Red/White and Green/Red wires. Go to step  6 . If resistance is more than 1.5 ohms, replace RCM. Go to step  6 .
5. Check for intermittent fault
   
   Refer to continuous DTCs recorded in step  1 . If DTC retrieved in step  1 was a intermittent fault, check for cause of intermittent low or high resistance on Red/White wire, Green/Red wire and clockspring assembly. Attempt to recreate fault by flexing wire harness and cycling ignition switch frequently. Repair any intermittent problems found. Go to next step. If DTC retrieved in step  1 was not a intermittent fault, go to next step.
6. Check for additional DTCs
   
   Refer to continuous DTCs recorded in step  1 . If any continuous DTCs were retrieved, go to diagnostic trouble code identification table for direction to appropriate test. See DIAGNOSTIC TROUBLE CODE IDENTIFICATION  table. If no DTCs were retrieved, reconnect air bag system. Activate air bag system. See ACTIVATING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Prove out system. Clear all DTCs. See CLEARING FAULT CODES  under DIAGNOSTICS.