Possible Causes

A PAD indicator circuit open or circuit short to ground can be caused by:

damaged wiring, terminals or connectors.
a faulted PAD indicator.
a faulted RCM.

NOTE:

Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the pinpoint test.

DTCS B1884 - PAD WARNING LAMP CIRCUIT FAILURE - PINPOINT TEST REFERENCE

PINPOINT TEST 3		DTCs B1884 - PAD WARNING LAMP CIRCUIT FAILURE
STEP	INSPECTION		ACTION
1	CHECK FOR CONTINUOUS OR ON-DEMAND DTCs WARNING: Restraint system diagnostic tools are for service only. Tools must be removed prior to operating the vehicle over the road. Failure to remove restraint system diagnostic tools could result in injury and possible violation of vehicle safety standards. WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury. WARNING: The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury. WARNING: Never probe the electrical connector on a safety canopy module. Doing so can result in safety canopy deployment. NOTE: The SRS must be Hilly operational and free of faults before releasing the vehicle to the customer. Enter the following diagnostic mode on the IDS or equivalent tester: On-Demand Self-Test/Retrieve and Record Continuous Memory DTCs Was on-demand DTC B1884 retrieved?	Yes	If the PAD indicator does illuminate, Go to next step. If the PAD indicator does not illuminate, Go to step 4.
1		No	This is an intermittent fault when present as a continuous memory DTC only (DTC not retrieved on demand). The fault condition is not present at this time. Go to step 8.
2	CHECK CIRCUIT (Y/O) FOR SHORT TO GROUND Key in OFF position. Depower the system. See DEPOWERING AND REPOWERING , . Disconnect: PAD Indicator 0810-102 Measure the resistance between PAD indicator connector 0810-102 pin 3, circuit (Y/O), harness side and ground. Is the resistance greater than 10,000 ohms?	Yes	Go to step 7.
2		No	Go to next step.
3	CHECK THE RCM FOR LOW RESISTANCE Disconnect: RCM 0810-101b and 0810-101a Measure the resistance between RCM connector 0810-101a pin 22, component side and ground. Is the resistance greater than 10,000 ohms?	Yes	REPAIR circuit (Y/O). Go to step 9.
3		No	Go to step 7.
4	CHECK CIRCUIT (Y/O) FOR OPEN Key in OFF position. Depower the system. See DEPOWERING AND REPOWERING , . Disconnect: RCM 0810-101b and 0810-101a Disconnect: PAD Indicator 0810-102 Measure the resistance between PAD indicator 0810-102 pin 3, circuit (Y/O), harness side and RCM 0810-101 b pin 22, circuit (Y/O), harness side. Is the resistance less than 0.5 ohm?	Yes	Go to next step.
4		No	REPAIR circuit (Y/O). Go to step 9.
5	CHECK CIRCUIT (GY/Y) FOR A OPEN Repower the system. Do not prove out the system at this time. See DEPOWERING AND REPOWERING , . Key in ON position. Measure the voltage between PAD indicator connector 0810-102 pin 1,. circuit (GY/Y), harness side and ground. Is the voltage greater than 10 volts?	Yes	Go to next step.
5		No	REPAIR circuit (GY/Y). Go to step 9.
6	CHECK PAD INDICATOR LAMP Key in OFF position. Deactivate the system. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION , . Disconnect: PAD Indicator connector 0810-102 Key in ON position. Connect a fused jumper wire between RCM connector 0810-101b pin 22, circuit (Y/O), harness side and ground. Does the PAD indicator illuminate?	Yes	Go to next step.
6		No	INSTALL a new PAD indicator. See PASSENGER AIR BAG DEACTIVATION (PAD) SWITCH , . Go to step 9.
7	CONFIRM THE RCM FAULT NOTE: Make sure all restraint system diagnostic tools, sensor electrical connectors and the RCM electrical connector are connected before carrying out the on-demand self-test. If not, erroneous DTCs will be recorded. Key in OFF position. Depower the system. See DEPOWERING AND REPOWERING , . Connect: PAD Indicator 0810-102 (if disconnected in prior step) Connect: RCM 0810-101b and 0810-101a (if disconnected in prior step) Repower the system. Do not prove out the system at this time. See DEPOWERING AND REPOWERING , . Enter the following diagnostic mode on the IDS or equivalent tester: On-Demand Self-Test/Retrieve and Record Continuous Memory DTCs Was on-demand DTC B1884 retrieved?	Yes	INSTALL a new RCM. See RESTRAINTS CONTROL MODULE (RCM) , . Go to step 9.
7		No	CHECK for causes of intermittent open or short to ground on circuit (Y/O). ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. ACTIVATE other systems in the same wire harness. REPAIR any intermittent concerns found. Go to step 9.
8	CHECK FOR AN INTERMITTENT FAULT Key in OFF position. Enter the following diagnostic mode on the IDS or equivalent tester: On-Demand Self-Test/Retrieve and Record Continuous Memory DTCs Was on-demand DTC B1884 retrieved?	Yes	This is a hard fault. The fault condition is now present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during the on-demand self-test. Go to step 2.
8		No	CHECK for causes of intermittent open or short to ground on circuit (Y/O). ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. ACTIVATE other systems in the same wire harness. REPAIR any intermittent concerns found. Go to next step.
9	CHECK FOR ADDITIONAL DTCs Refer to the continuous memory DTCs recorded during Step 1. Were any continuous memory DTCs retrieved during Step 1 ?	Yes	Do not clear any DTCs until all DTCs have been resolved. See DIAGNOSTIC TROUBLE CODE (DTC) INDEX- RESTRAINTS CONTROL MODULE (RCM) , for pinpoint test direction.
9		No	RECONNECT the system. If previously directed to deactivate the system, REACTIVATE the system. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION , . REPOWER the system. See DEPOWERING AND REPOWERING , . PROVE OUT the system. CLEAR all RCM and OCS module DTCs.