PINPOINT TEST F: DTCs B0021:11, B0021:12, B0021:13 AND B0021:1A
- F1 RETRIEVE RCM DTCs
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM .
Was DTC B0021:11, B0021:12, B0021:13 or B0021:1A retrieved on-demand during self-test?
- Yes
: This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during self-test.
For DTC B0021:13 or B0021:1A, GO to F2 .
For DTC B0021:11, GO to F8.
For DTC B0021:12, GO to F10.
- No
: This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only.
For DTC B0021:13 or B0021:1A, GO to F13.
For DTC B0021:11, GO to F14.
For DTC B0021:12, GO to F15.
- F2 CHECK THE LEFT CURTAIN DEPLOYMENT CONTROL 1 RESISTANCE (DEPLOY_11_R) PID
- Enter the following diagnostic mode on the scan tool: DataLogger - RCM
.
- DEPLOY_11_R PID
Does the PID value read between 1.7 and 2.78 ohms?
- Yes : GO to F12.
- No : GO to F3 .
- Enter the following diagnostic mode on the scan tool: DataLogger - RCM
.
- F3 CHECK THE LEFT CURTAIN DEPLOYMENT CONTROL 1 RESISTANCE (DEPLOY_11_R) PID WHILE CARRYING OUT THE HARNESS TEST
- While monitoring the DEPLOY_11_R PID, carry out the harness test of the driver Safety Canopy® circuits and accessible connectors (including any in-line connectors) by wiggling connectors and flexing the wire harness frequently.
Does the PID value read between 1.7 and 2.78 ohms while carrying out the harness test?
- Yes
: DEPOWER the SRS
and REPAIR the connector, terminals or wire harness as needed.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to F17.
- No
: For PID value less than 1.7 ohms, GO to F4
.
For PID value greater than 2.78 ohms, GO to F6.
- F4 CHECK THE LEFT CURTAIN DEPLOYMENT CONTROL 1 DTC FOR A FAULT STATUS CHANGE (LOW RESISTANCE INDICATED) NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.
- Ignition OFF.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Safety Canopy® Module C9018
.
- Remove the LH quarter trim panel. Refer to QUARTER TRIM PANEL .
- Repower the SRS . Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM .
- DIAGNOSTIC TIP: When viewing DTCs with the driver Safety Canopy® disconnected, an open circuit fault is normally retrieved.
Did the on-demand DTC change from B0021:1A to B0021:13?
- Yes : GO to F11.
- No : GO to F5 .
- F5 CHECK FOR A SHORT BETWEEN DRIVER SAFETY CANOPY® CIRCUITS
- Ignition OFF.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: RCM C310A and C310B .
- Measure the resistance between driver Safety Canopy® C9018-1 , circuit CR109 (BN/BU), harness side and driver Safety Canopy® C9018-2 , circuit RR109 (BU/GN), harness side.
Is the resistance greater than 10, 000 ohms?
- Yes : GO to F12.
- No
: REPAIR circuits CR109 (BN/BU) and RR109 (BU/GN).
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to F17.
- F6 CHECK THE DRIVER SAFETY CANOPY® CIRCUITS FOR AN OPEN
- Ignition OFF.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Safety Canopy® Module C9018
.
- Remove the LH quarter trim panel. Refer to QUARTER TRIM PANEL .
- Disconnect: RCM C310A and C310B .
- Measure the resistance between RCM C310B
, harness side and driver Safety Canopy® C9018
, harness side using the following chart.
RCM Circuit Driver Safety Canopy® Module C310B-7 CR109 (BN/BU) C9018-1 C310B-8 RR109 (BU/GN) C9018-2
Are the resistances less than 0.5 ohm?
- Yes : GO to F7 .
- No
: REPAIR circuit CR109 (BN/BU) or RR109 (BU/GN).
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to F17.
- F7 CHECK THE LEFT CURTAIN DEPLOYMENT CONTROL 1 DTC FOR A FAULT STATUS CHANGE (OPEN INDICATED) NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.
- Connect: RCM C310A and C310B .
- Connect a fused jumper wire between driver Safety Canopy® C9018-1 , circuit CR109 (BN/BU), harness side, and driver Safety Canopy® C9018-2 , circuit RR109 (BU/GN), harness side.
- Repower the SRS . Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM .
- DIAGNOSTIC TIP: When viewing DTCs with the driver Safety Canopy® circuits shorted together, a low resistance fault is normally retrieved.
Did the on-demand DTC change from B0021:13 to B0021:1A?
- F8 CHECK THE LEFT CURTAIN DEPLOYMENT CONTROL 1 DTC FOR A FAULT STATUS CHANGE (SHORT TO GROUND INDICATED) NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.
- Ignition OFF.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Safety Canopy® Module C9018
.
- Remove the LH quarter trim panel. Refer to QUARTER TRIM PANEL .
- Repower the SRS . Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM .
- DIAGNOSTIC TIP: When viewing DTCs with the driver Safety Canopy® disconnected, an open circuit fault is normally retrieved.
Did the on-demand DTC change from B0021:11 to B0021:13?
- Yes : GO to F11.
- No : GO to F9 .
- F9 CHECK THE DRIVER SAFETY CANOPY® CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: RCM C310A and C310B .
- Measure the resistance between driver Safety Canopy®:
- C9018-1 , circuit CR109 (BN/BU), harness side and ground.
- C9018-2 , circuit RR109 (BU/GN), harness side and ground.
Are the resistances greater than 10, 000 ohms?
- Yes : GO to F12.
- No
: REPAIR circuit CR109 (BN/BU) or RR109 (BU/GN).
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to F17.
- F10 CHECK THE DRIVER SAFETY CANOPY® CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Safety Canopy® Module C9018
.
- Remove the LH quarter trim panel. Refer to QUARTER TRIM PANEL .
- Disconnect: RCM C310A and C310B .
- Repower the SRS . Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Measure the voltage between driver Safety Canopy®:
- C9018-1 , circuit CR109 (BN/BU), harness side and ground.
- C9018-2 , circuit RR109 (BU/GN), harness side and ground.
Is any voltage present?
- Yes
: REPAIR circuit CR109 (BN/BU) or RR109 (BU/GN).
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to F17.
- No : GO to F12.
- F11 CONFIRM THE DRIVER SAFETY CANOPY® FAULT NOTE: Make sure all restraint system components and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.
- Ignition OFF.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Prior to reconnecting any previously disconnected SRS
component:
- inspect connector(s) (including any in-line connectors) for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
- inspect wire harness for any damage, pinched, cut or pierced wires.
- inspect RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation. Refer to RESTRAINTS CONTROL MODULE (RCM) .
- repair any concerns found.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
- Connect: Driver Safety Canopy® Module C9018 .
- Repower the SRS . Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM .
Was the original DTC retrieved on-demand during self-test?
- Yes : INSTALL a new driver Safety Canopy®. REFER to SAFETY CANOPY . GO to F17.
- No
: In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test
.
For DTC B0021:13 or B0021:1A, GO to F13.
For DTC B0021:11, GO to F14.
For DTC B0021:12, GO to F15.
- F12 CONFIRM THE RCM FAULT NOTE: Make sure all restraint system components and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.
- Ignition OFF.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Prior to reconnecting any previously disconnected SRS
component:
- inspect connector(s) (including any in-line connectors) for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
- inspect wire harness for any damage, pinched, cut or pierced wires.
- inspect RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation. Refer to RESTRAINTS CONTROL MODULE (RCM) .
- repair any concerns found.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
- Connect: Driver Safety Canopy® C9018 (if previously disconnected).
- Connect: RCM C310A and C310B (if previously disconnected).
- Repower the SRS . Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM .
Was the original DTC retrieved on-demand during self-test?
- Yes : INSTALL a new RCM . REFER to RESTRAINTS CONTROL MODULE (RCM) . GO to F17.
- No
: In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test
.
For DTC B0021:13 or B0021:1A, GO to F13 .
For DTC B0021:11, GO to F14.
For DTC B0021:12, GO to F15.
- F13 CHECK THE LEFT CURTAIN DEPLOYMENT CONTROL 1 RESISTANCE (DEPLOY_11_R) PID FOR AN INTERMITTENT LOW RESISTANCE OR OPEN CIRCUIT FAULT
- Enter the following diagnostic mode on the scan tool: DataLogger - RCM
.
- DEPLOY_11_R PID
- Attempt to recreate the fault by wiggling connectors (including any in-line connectors) and flexing the wire harness frequently.
Does the PID value read between 1.7 and 2.78 ohms?
- Yes : The fault is not present and cannot be recreated at this time. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test . GO to F16.
- No
: DEPOWER the SRS
and REPAIR as necessary.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to F17.
- Enter the following diagnostic mode on the scan tool: DataLogger - RCM
.
- F14 CHECK FOR AN INTERMITTENT LEFT CURTAIN DEPLOYMENT CONTROL 1 SHORT TO GROUND FAULT
- Attempt to recreate the fault by wiggling connectors (including any in-line connectors) and flexing the wire harness frequently.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM .
Was DTC B0021:11 retrieved on-demand during self-test?
- Yes
: DEPOWER the SRS
and REPAIR as necessary.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to F17.
- No : The fault is not present and cannot be recreated at this time. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test . GO to F16.
- F15 CHECK FOR AN INTERMITTENT LEFT CURTAIN DEPLOYMENT CONTROL 1 SHORT TO BATTERY FAULT
- Ignition OFF.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Safety Canopy® Module C9018
.
- Remove the LH quarter trim panel. Refer to QUARTER TRIM PANEL .
- Repower the SRS . Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Attempt to recreate the fault by wiggling connectors (including any in-line connectors) and flexing the wire harness frequently.
- Enter the following diagnostic mode on the scan tool: Self Test - RCM .
Was DTC B0021:12 retrieved on-demand during self-test?
- Yes
: DEPOWER the SRS
and REPAIR as necessary.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to F17.
- No : The fault is not present and cannot be recreated at this time. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test . GO to F16 .
- F16 CHECK THE HARNESS AND CONNECTORS
- Ignition OFF.
- Depower the SRS . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Safety Canopy® Module C9018
.
- Remove the LH quarter trim panel. Refer to QUARTER TRIM PANEL .
- inspect connector(s) (including any in-line connectors) for corrosion, loose or spread terminals and loose or frayed wire connections at terminals.
- inspect wire harness for any damage, pinched, cut or pierced wires.
- Inspect RCM C310A and C310BCPA lever/lock for correct operation. Refer to RESTRAINTS CONTROL MODULE (RCM) .
Were any concerns found?
- Yes
: REPAIR as necessary.
Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.
GO to F17 .
- No : The fault is not present and cannot be recreated at this time. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test . GO to F17 .
- F17 CHECK FOR ADDITIONAL SRS DTCs
- Ignition OFF.WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
- Reconnect all SRS components (if previously disconnected).
- If previously directed to depower the SRS , repower the SRS . Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - Restraints.NOTE: When selecting Restraints from the Self Test menu, DTCs are retrieved from the RCM and OCSM .
Are any RCM and/or OCSM DTCs retrieved on-demand during self-test?
- Yes : Do not clear any DTCs until all DTCs have been resolved. GO to the DTC CHARTS for pinpoint test direction.
- No : CLEAR all RCM and OCSM CMDTCs . PROVE OUT the SRS . Repair is complete. RETURN the vehicle to the customer.
- Ignition OFF.