Diagnostic Procedure

WARNING: Never probe the electrical connectors on air bag, safety canopy or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

WARNING: Never probe the electrical connectors on safety belt buckle/retractor pretensioners or adaptive load limiting retractors. Failure to follow this instruction may result in the accidental deployment of the safety belt pretensioners or adaptive load limiting retractors, which increases the risk of serious personal injury or death.

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

NOTE: The supplemental restraint system (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the Pinpoint Test.

DIAGNOSTIC PROCEDURE

PINPOINT TEST 5	THE RESTRAINTS CONTROL MODULE (RCM) DOES NOT RESPOND TO THE SCAN TOOL
STEP	INSPECTION	ACTION
1	CHECK THE RCM CONNECTION Key in OFF position. Depower the supplemental restraint system (SRS). See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING . Disconnect: RCM 0810-101. Disconnect: RCM 0810-102. Are RCM 0922-101 pins 11, 12, and 16 OK?	Yes	GO to the next step.
1		No	REPAIR the RCM connector pins as necessary. REPOWER the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING . CLEAR the DTCs. REPEAT the network test with the scan tool.
2	CHECK THE RCM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN Connect the battery ground cable. Key in ON position. Measure the voltage between the RCM 0810-101 pin 24, harness side and ground. Is the voltage greater than 10 volts?	Yes	GO to the next step.
2		No	VERIFY the smart junction box (SJB) fuse 32 (10A) is OK. If OK, REPAIR the circuit in question. REPOWER the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING . CLEAR the DTCs. REPEAT the network test with the scan tool.
3	CHECK THE RCM CASE GROUND FOR AN OPEN Key in OFF position. Measure the resistance between the metal RCM case and a good chassis ground. Is the resistance less than 5 ohms?	Yes	GO to the next step.
3		No	REPAIR the case ground connection. REPOWER the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING . CLEAR the DTCs. REPEAT the network test with the scan tool.
4	CHECK THE HS-CAN CIRCUITS BETWEEN THE RCM AND THE DATA LINK CONNECTOR (DLC) FOR AN OPEN Measure the resistance between the RCM 0810-102 pin 18, circuit (W/L), harness side and the DLC D-01 pin 6, circuit (W/L), harness side. Measure the resistance between the RCM 0810-102 pin 17, circuit (W), harness side and the DLC D-01 pin 14, circuit (W), harness side. Are the resistances less than 5 ohms?	Yes	GO to the next step.
4		No	REPAIR the circuit in question. REPOWER the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING . 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) REMOVAL/INSTALLATION . REPOWER the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING . 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. CLEAR the DTCs. REPOWER the SRS. See SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING . REPEAT the network test with the scan tool.