Pinpoint Test E: DTC U210A: 11 Or U210A: 15
- E1 CHECK THE HSWM DTCs
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self-Test - HSWM.
- Is DTC U210A: 11 present?
- YES : GO to E2.
- No
: For DTC U210A: 15, GO to E5.
For all other DTCs, REFER to the Heated Steering Wheel Module (HSWM) DTC Chart .
- E2 CHECK THE HEATER ELEMENT TEMPERATURE SENSOR REFERENCE CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Disconnect: HSWM C2406.
- Measure the resistance between ground and HSWM C2406-5, circuit VHS73 (GN/BN), harness side.
- Is the resistance greater than 10, 000 ohms?
- YES : GO to E6.
- No : GO to E3.
- E3 CHECK THE HEATER ELEMENT TEMPERATURE SENSOR REFERENCE CIRCUIT FOR A SHORT TO GROUND
- Depower the Supplemental Restraint System (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM .
- Remove the steering column shrouds to access the clockspring connectors. Refer to Steering Column Shroud in this service information.
- Disconnect: Clockspring C218A.
- Measure the resistance between ground and HSWM C2406-5, circuit VHS73 (GN/BN), harness side.
- Is the resistance greater than 10, 000 ohms?
- YES : GO to E4.
- No : REPAIR circuit VHS73 (GN/BN) for a short to ground. CONNECT clockspring C218A and HSWM C2406. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
- E4 CHECK THE HEATER ELEMENT TEMPERATURE SENSOR RESISTANCE
- Remove the driver air bag module. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .
- Disconnect: Clockspring C218B.
- Measure the resistance between ground and clockspring C218B-1, harness side.
- Is the resistance greater than 10, 000 ohms?
- YES : INSTALL a new clockspring. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . REINSTALL the driver air bag module. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CONNECT HSWM C2406. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
- No : INSTALL a new steering wheel. REFER to Steering Wheel in this service information. REINSTALL the driver air bag module. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CONNECT HSWM C2406. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
- E5 CHECK THE HEATER ELEMENT TEMPERATURE SENSOR REFERENCE AND GROUND CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Depower the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .
- Remove the steering column shrouds to access the clockspring connectors. Refer to Steering Column Shroud in this service information.
- Disconnect: Clockspring C218A.
- Disconnect: HSWM C2406.
- Connect: Battery Ground Cable C1100B.
- Ignition ON.
- Measure the voltage between ground and:
- HSWM C2406-5, circuit VHS73 (GN/BN), harness side.
- HSWM C2406-12, circuit RHS73 (BN/BU), harness side.
- Is any voltage present?
- YES : REPAIR circuit VHS73 (GN/BN) or RHS73 (BN/BU) for a short to voltage. DISCONNECT battery ground cable C1100B. CONNECT clockspring C218A and HSWM C2406. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
- No : TURN the ignition OFF, DISCONNECT the battery ground cable C1100B, CONNECT clockspring C218A and GO to E6.
- E6 CHECK THE HEATER ELEMENT TEMPERATURE SENSOR AND CIRCUIT RESISTANCE
- Measure the resistance between HSWM C2406-5, circuit RHS73 (BN/BU), harness side and HSWM C2406-12, circuit VHS73 (GN/BN), harness side.
- Is the resistance between 627 and 670, 000 ohms?
- E7 CHECK THE HEATER ELEMENT TEMPERATURE SENSOR CIRCUITS FOR A SHORT
- Disconnect: Clockspring C218A.
- Measure the resistance between HSWM C2406-5, circuit RHS73 (BN/BU), harness side and HSWM C2406-12, circuit VHS73 (GN/BN), harness side.
- Is the resistance greater than 10, 000 ohms?
- YES : GO to E9.
- No : REPAIR circuit VHS73 (GN/BN) and RHS73 (BN/BU) for a short together. CONNECT clockspring C218A and HSWM C2406. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
- E8 CHECK THE HEATER ELEMENT TEMPERATURE SENSOR CIRCUITS FOR AN OPEN
- Disconnect: Clockspring C218A.
- Measure the resistance between HSWM C2406-5, circuit VHS73 (GN/BN), harness side and clockspring C218A-3, circuit VHS73 (GN/BN), harness side.
- Measure the resistance between HSWM C2406-12, circuit RHS73 (BN/BU), harness side and C218A-2, circuit RHS73 (BN/BU), harness side.
- Are the resistances less than 5 ohms?
- YES : GO to E9.
- No : REPAIR circuit VHS73 (GN/BN) or RHS73 (BN/BU) for an open. CONNECT clockspring C218A and HSWM C2406. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
- E9 CHECK THE HEATER ELEMENT TEMPERATURE SENSOR RESISTANCE
- Remove the driver air bag module. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .
- Disconnect: Clockspring C218B.
- Measure the resistance between clockspring C218B-1, steering wheel side and clockspring C218B-2, steering wheel side.
- Is the resistance between 627 and 670, 000 ohms?
- YES : INSTALL a new clockspring. REFER to SUPPLEMENTAL RESTRAINT SYSTEM and connect all electrical connectors. REINSTALL the driver air bag module. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . HSWM C2406. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
- No : INSTALL a new steering wheel. REFER to Steering Wheel in this service information. REINSTALL the driver air bag module. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . HSWM C2406. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
- E10 CHECK THE HSWM CONNECTION
- Disconnect all the HSWM connectors.
- Inspect the HSWM connectors for:
- corrosion
- pushed-out terminals
- damaged terminals
- Connect and correctly seat all the HSWM and clockspring connectors.
- Repower the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM .
- Ignition ON.
- Clear the DTCs.
- Enter the following diagnostic mode on the scan tool: Self-Test - Heated Steering Wheel Module (HSWM).
- Operate the heated steering wheel system and verify the concern is still present.
- Is the concern still present?
- YES : INSTALL a new HSWM. REFER to Heated Steering Wheel Module (HSWM) in this service information. TEST the system for normal operation.
- No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal operation.