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Possible Causes

SJB fuse 8 (10A)
Circuit (W/L) open (HS-CAN +)
Circuit (W) open (HS-CAN -)
Circuit (GY/Y) open
Case ground open
RCM

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.

CAUTION:

Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.

NOTE:

The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

RESTRAINTS CONTROL MODULE (RCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL - PINPOINT TEST REFERENCE

PINPOINT TEST 2		RESTRAINT CONTROL MODULE (RCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL
STEP	INSPECTION		ACTION
1	CHECK THE RCM 0810-101B FOR DAMAGE Key in OFF position. Depower the SRS. See DEPOWERING AND REPOWERING , . Disconnect: RCM connectors 0810-101a and 0810-101b. Inspect the RCM connector 0810-101 a, harness side and RCM connector 0810-101a, component side, pins 17 and 18 for damage. Are the RCM connector pins 17 and 18 OK?	Yes	Go to next step.
1		No	REPAIR the RCM connector pins as necessary. REPOWER the SRS. See DEPOWERING AND REPOWERING , . CLEAR the DTCs. REPEAT the network test with the scan tool.
2	CHECK THE IGNITION CIRCUIT (GY/Y) FOR AN OPEN Deactivate the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION , . Repower the SRS. See DEPOWERING AND REPOWERING , . Key in ON position. Measure the voltage between the RCM connector 0810-101b pin 24, circuit (GY/Y), harness side and ground. Is the voltage greater than 10 volts?	Yes	Go to next step.
2		No	VERIFY the smart junction box (SJB)fuse 8 (10A) is OK. If OK, REPAIR the circuit. REACTIVATE the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION , . CLEAR the DTCs. REPEAT the network test with the scan tool.
3	CHECK THE RCM CASE GROUND Key in OFF position. Measure the resistance between the RCM case and a good sheet metal ground near the RCM. Is the resistance less than 25 ohms?	Yes	Go to next step.
3		No	REPAIR the RCM case ground as necessary. REACTIVATE the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION , . CLEAR the DTCs. REPEAT the network test with the scan tool.
4	CHECK THE HS-CAN CIRCUITS BETWEEN THE DATA LINK CONNECTOR (DLC) AND THE RCM FOR AN OPEN Measure the resistance between the RCM connector 0810-101a pin 18, circuit (W/L), harness side and the DLC connector D-1 pin 6, circuit (W/L), harness side. Measure the resistance between the RCM connector 0810-101a pin 17, circuit (W), harness side and the DLC connector D-1 pin 14, circuit (W), harness side. Are the resistances less than 5 ohms?	Yes	Go to next step.
4		No	REPAIR the circuit in question. REACTIVATE the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION , . CLEAR the DTCs. REPEAT the network test with the scan tool.
5	CHECK FOR CORRECT RCM OPERATION Disconnect all the RCM connectors. Check for: corrosion damaged pins pushed-out pins Connect all the RCM connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present?	Yes	INSTALL a new RCM. See RESTRAINTS CONTROL MODULE (RCM) , . REACTIVATE the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION , . CLEAR the DTCs. REPEAT the network test with the scan tool.
5		No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. REACTIVATE the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION , . CLEAR the DTCs. REPEAT the network test with the scan tool.