Pinpoint Test
- RETRIEVE THE DTCs
FROM THE DSM
- Ignition ON.
- Using a scan tool, perform DSM self-test.
Are any DTCs retrieved?
- Yes: If DTC B1667 or B1668 is present with other DTCs
, DIAGNOSE the other DTCs
first.
If DTC B1667 or B1668 is present without other DTCs , INSPECT the LH exterior mirror motor for foreign material, damage or a binding condition. If no condition is found, GO to 10.
If DTC B1669 or B1670 is present with other DTCs , DIAGNOSE the other DTCs first.
If DTC B1669 or B1670 is present without other DTCs , INSPECT the RH exterior mirror motor for foreign material, damage or a binding condition. If no condition is found, GO to 12.
For DTCs B1733, B1737, B1741 or B1745, GO to 14.
For DTC B2223, GO to 17.
For DTC B2224, GO to 19.
For DTCs B2312, B2316, B2320 or B2324, GO to 21.
For DTCs B2314, B2318, B2322 or B2326, GO to 24.
For all other DSM DTCs , REFER to DTC CHART: DRIVER SEAT MODULE (DSM) .
- No: GO to 2 .
- CHECK OPERATION OF THE MIRRORS FROM THE EXTERIOR MIRROR CONTROL SWITCH
- Operate the mirrors using the exterior mirror control switch.
Does the LH or RH mirror operate using the exterior mirror control switch?
- Yes: If the LH or RH exterior mirror operates correctly in at least one direction, GO to 9.
- No: If both the LH and RH exterior mirrors are inoperative, GO to 3 .
- CHECK THE EXTERIOR MIRROR CONTROL SWITCHNOTE: The following step uses a test light to simulate normal circuit loads. Use only the test light recommended in the Special Tools table at the beginning of this information. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector. Refer to Special Tool(s) .
- Ignition OFF.
- Disconnect: DSM C341D.
- Select the LH mirror on the exterior mirror control switch.
- Ignition ON.
- While selecting the right direction on the exterior mirror control switch, monitor:
DSM DSM C341D C341D Pin Circuit Measurement / Action Pin Circuit 20 CPM16 (BN/BU) Test Light 16 RPM11 (YE/OG)
Did the light illuminate?
- Yes: GO to 26.
- No: GO to 4 .
- CHECK FOR VOLTAGE TO THE EXTERIOR MIRROR CONTROL SWITCH
- Measure:
Exterior Mirror Control Switch Ground C504 Ground Pin Circuit Measurement / Action Pin Circuit 10 CBP32 (GN/VT) - Ground
Is the voltage greater than 11 volts?
- Yes: GO to 5 .
- No: VERIFY that BCM fuse 32 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to OEM FUSE AND RELAY INFORMATION and OEM WIRING DIAGRAMS .
- Measure:
- CHECK FOR GROUND TO THE EXTERIOR MIRROR CONTROL SWITCH
- Ignition OFF.
- Measure:
Exterior Mirror Control Switch Ground C504 Ground Pin Circuit Measurement / Action Pin Circuit 1 GD233 (BK) - Ground
Is the resistance less than 3 ohms?
- Yes: GO to 6 .
- No: REPAIR the circuit.
- CHECK THE MIRROR SWITCH COMMON CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition ON.
- Measure:
Exterior Mirror Control Switch Ground C504 Ground Pin Circuit Measurement / Action Pin Circuit 4 RPM11 (YE/OG) - Ground
Is any voltage present?
- Yes: REPAIR the circuit.
- No: GO to 7 .
- CHECK THE MIRROR SWITCH COMMON CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Exterior Mirror Control Switch Ground C504 Ground Pin Circuit Measurement / Action Pin Circuit 4 RPM11 (YE/OG) - Ground
Is the resistance greater than 10, 000 ohms?
- Yes: GO to 8 .
- No: REPAIR the circuit.
- CHECK THE MIRROR SWITCH COMMON CIRCUIT FOR AN OPEN
- Measure:
Exterior Mirror Control Switch DSM C504 C341D Pin Circuit Measurement / Action Pin Circuit 4 RPM11 (YE/OG) 16 RPM11 (YE/OG)
Is the resistance less than 3 ohms?
- Yes: GO to 26.
- No: REPAIR the circuit.
- Measure:
- CHECK THE EXTERIOR MIRROR SWITCH CIRCUITS FOR AN OPEN
- Ignition OFF.
- Disconnect: Exterior Mirror Control Switch.
- Disconnect: DSM C341D.
- Measure:
Exterior Mirror Control Switch DSM C504 C341D Pin Circuit Measurement / Action Pin Circuit 8 CPM21 (YE/VT) 17 CPM21 (YE/VT) 6 CPM17 (BU/WH) 19 CPM17 (BU/GN) 7 CPM20 (BN/WH) 18 CPM20 (BN/WH) 5 CPM16 (BN/BU) 20 CPM16 (BN/BU)
Are the resistances less than 3 ohms?
- Yes: GO to 26.
- No: REPAIR the affected circuit.
- CHECK THE LH EXTERIOR MIRROR FOR VOLTAGE WHILE COMMANDING THE DSM PIDs
- Ignition OFF.
- Disconnect: LH Exterior Mirror.
- Ignition ON.
- Using a scan tool, view DSM PIDs .
- If only DTC B1667 is set, while toggling the DSM PID Driver's Mirror Up (DR_UP) to On, measure:
LH Exterior Mirror Ground C516 Ground Pin Circuit Measurement / Action Pin Circuit 1 CPM29 (GN) - Ground - If only DTC B1668 is set, while toggling the DSM PID Driver's Mirror Right (DR_RIGHT) to On, measure:
LH Exterior Mirror Ground C516 Ground Pin Circuit Measurement / Action Pin Circuit 4 CPM28 (BU/BN) - Ground - If both DTCs
B1667 and B1668 are set, while toggling the DSM PID Driver's Mirror Down (DR_DOWN) to On, measure:
LH Exterior Mirror Ground C516 Ground Pin Circuit Measurement / Action Pin Circuit 2 CPM26 (WH) - Ground
Does the voltage momentarily change from 0 volts to greater than 11 volts when the active command is toggled ON?
- Yes: CHECK the LH exterior mirror jumper harness between the vehicle harness and the exterior mirror motors for open circuits and damaged or pushed-out pins. If the jumper harness is not OK, REPAIR the jumper harness. If the jumper harness cannot be repaired, INSTALL a new LH exterior mirror. REFER to Exterior Mirror . If the jumper harness is OK, INSTALL a new LH exterior mirror motor. REFER to Exterior Mirror Motor .
- No: GO to 11 .
- CHECK THE LH EXTERIOR MIRROR CONTROL OUTPUT CIRCUITS FOR AN OPEN
- Ignition OFF.
- Disconnect: DSM C341D.
- If only DTC B1667 is set, measure:
LH Exterior Mirror DSM C516 C341D Pin Circuit Measurement / Action Pin Circuit 1 CPM29 (GN) 4 CPM29 (GN) - If only DTC B1668 is set, measure:
LH Exterior Mirror DSM C516 C341D Pin Circuit Measurement / Action Pin Circuit 4 CPM28 (BU/BN) 5 CPM28 (BU/BN) - If both DTCs
B1667 and B1668 are set, measure:
LH Exterior Mirror DSM C516 C341D Pin Circuit Measurement / Action Pin Circuit 2 CPM26 (WH) 2 CPM26 (WH)
Is the resistance less than 3 ohms?
- Yes: GO to 26.
- No: REPAIR the circuit.
- CHECK THE RH EXTERIOR MIRROR FOR VOLTAGE WHILE COMMANDING THE DSM PIDs
- Ignition OFF.
- Disconnect: RH Exterior Mirror.
- Ignition ON.
- Using a scan tool, view DSM PIDs .
- If only DTC B1669 is set, while toggling the DSM PID Passenger's Mirror Up (PR_UP) to On, measure:
RH Exterior Mirror Ground C601 Ground Pin Circuit Measurement / Action Pin Circuit 1 CPM34 (WH/BN) - Ground - If only DTC B1670 is set, while toggling the DSM PID Passenger's Mirror Right (PR_RIGHT) to On, measure:
RH Exterior Mirror Ground C601 Ground Pin Circuit Measurement / Action Pin Circuit 4 CPM33 (WH/VT) - Ground - If both DTCs
B1669 and B1670 are set, while toggling the DSM PID Passenger's Mirror Left (PR_LEFT) to On, measure:
RH Exterior Mirror Ground Ground C601 Pin Circuit Measurement / Action Pin Circuit 2 CPM31 (YE/GY) - Ground
Does the voltage momentarily change from 0 volts to greater than 11 volts when the active command is toggled ON?
- Yes: CHECK the RH exterior mirror jumper harness between the vehicle harness and the exterior mirror motors for open circuits and damaged or pushed-out pins. If the jumper harness is not OK, REPAIR the jumper harness. If the jumper harness cannot be repaired, INSTALL a new RH exterior mirror. REFER to Exterior Mirror . If the jumper harness is OK, INSTALL a new exterior mirror motor. REFER to Exterior Mirror Motor .
- No: GO to 13 .
- CHECK THE RH EXTERIOR MIRROR CONTROL OUTPUT CIRCUITS FOR AN OPEN
- Ignition OFF.
- Disconnect: DSM C341D.
- If only DTC B1669 is set, measure:
RH Exterior Mirror DSM C601 C341D Pin Circuit Measurement / Action Pin Circuit 1 CPM34 (WH/BN) 7 CPM34 (WH/BN) - If only DTC B1670 is set, measure:
RH Exterior Mirror DSM C601 C341D Pin Circuit Measurement / Action Pin Circuit 4 CPM33 (WH/VT) 6 CPM33 (WH/VT) - If both DTCs
B1669 and B1670 are set, measure:
RH Exterior Mirror DSM C601 C341D Pin Circuit Measurement / Action Pin Circuit 2 CPM31 (YE/GY) 8 CPM31 (YE/GY)
Is the resistance less than 3 ohms?
- Yes: GO to 26.
- No: REPAIR the circuit.
- CHECK THE EXTERIOR MIRROR CONTROL SWITCH
- Ignition OFF.
- Disconnect: Exterior Mirror Control Switch.
- Ignition ON.
- Using a scan tool, clear the DTCs and perform DSM self-test.
Did DSM DTC B1733, B1737, B1741 or B1745 return?
- Yes: GO to 15 .
- No: INSTALL a new exterior mirror control switch (integral to the master window control switch). REFER to WINDOW CONTROL SWITCH .
- CHECK THE MIRROR CONTROL CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: DSM C341D.
- Ignition ON.
- Measure:
Exterior Mirror Control Switch Ground C504 Ground Pin Circuit Measurement / Action Pin Circuit 6 CPM17 (BU/WH) (B1733) - Ground 5 CPM16 (BN/BU) (B1737) - Ground 8 CPM21 (YE/VT) (B1741) - Ground 7 CPM20 (BN/WH) (B1745) - Ground
Is any voltage present?
- Yes: REPAIR the circuit.
- No: GO to 16 .
- CHECK THE EXTERIOR MIRROR SWITCH CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Exterior Mirror Control Switch Ground C504 Ground Pin Circuit Measurement / Action Pin Circuit 6 CPM17 (BU/WH) (B1733) - Ground 5 CPM16 (BN/BU) (B1737) - Ground 8 CPM21 (YE/VT) (B1741) - Ground 7 CPM20 (BN/WH) (B1745) - Ground
Is the resistance greater than 10, 000 ohms?
- Yes: GO to 26.
- No: REPAIR the circuit.
- CHECK THE LH EXTERIOR MIRROR CONTROL OUTPUT CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: LH Exterior Mirror.
- Disconnect: DSM C341D.
- Ignition ON.
- Measure:
LH Exterior Mirror Ground C516 Ground Pin Circuit Measurement / Action Pin Circuit 1 CPM29 (GN) - Ground 2 CPM26 (WH) - Ground 4 CPM28 (BU/BN) - Ground
Are any voltages present?
- Yes: REPAIR the affected circuit.
- No: GO to 18 .
- CHECK THE LH EXTERIOR MIRROR CONTROL OUTPUT CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
LH Exterior Mirror Ground C516 Ground Pin Circuit Measurement / Action Pin Circuit 1 CPM29 (GN) - Ground 2 CPM26 (WH) - Ground 4 CPM28 (BU/BN) - Ground
Are the resistances greater than 10, 000 ohms?
- Yes: GO to 25.
- No: REPAIR the affected circuit.
- CHECK THE RH EXTERIOR MIRROR CONTROL OUTPUT CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: RH Exterior Mirror.
- Disconnect: DSM C341D.
- Ignition ON.
- Measure:
RH Exterior Mirror Ground C601 Ground Pin Circuit Measurement / Action Pin Circuit 1 CPM34 (WH/BN) - Ground 2 CPM31 (YE/GY) - Ground 4 CPM33 (WH/VT) - Ground
Are any voltages present?
- Yes: REPAIR the affected circuit.
- No: GO to 20 .
- CHECK THE RH EXTERIOR MIRROR CONTROL OUTPUT CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
RH Exterior Mirror Ground C601 Ground Pin Circuit Measurement / Action Pin Circuit 1 CPM34 (WH/BN) - Ground 2 CPM31 (YE/GY) - Ground 4 CPM33 (WH/VT) - Ground
Are the resistances greater than 10, 000 ohms?
- Yes: GO to 25.
- No: REPAIR the affected circuit.
- CHECK THE MIRROR POSITION SENSOR CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Disconnect: DSM C341D.
- Disconnect: RH Exterior Mirror.
- Disconnect: LH Exterior Mirror.
- For DTC B2312 or B2316, measure:
DSM Ground C341D Ground Pin Circuit Measurement / Action Pin Circuit 1 LPM30 (GY/VT) - Ground 11 RPM30 (YE) - Ground 14 VPM38 (BN/GN) - Ground 15 VPM37 (BU/OG) - Ground - For DTC B2320 or B2324, measure:
DSM Ground C341D Ground Pin Circuit Measurement / Action Pin Circuit 1 LPM30 (GY/VT) - Ground 11 RPM30 (YE) - Ground 12 VPM36 (BN/YE) - Ground 13 VPM35 (YE/BU) - Ground
Are the resistances greater than 10, 000 ohms?
- Yes: GO to 22 .
- No: REPAIR the affected circuit.
- CHECK THE MIRROR POSITION SENSOR CIRCUITS FOR AN OPEN
- For DTC B2312 or B2316, measure:
RH Exterior Mirror DSM C601 C341D Pin Circuit Measurement / Action Pin Circuit 9 VPM38 (BN/GN) 14 VPM38 (BN/GN) 10 LPM30 (GY/VT) 1 LPM30 (GY/VT) 11 VPM37 (BU/OG) 15 VPM37 (BU/OG) 12 RPM30 (YE) 11 RPM30 (YE) - For DTC B2320 or B2324, measure:
LH Exterior Mirror DSM C516 C341D Pin Circuit Measurement / Action Pin Circuit 9 VPM36 (BN/YE) 12 VPM36 (BN/YE) 10 LPM30 (GY/VT) 1 LPM30 (GY/VT) 12 RPM30 (YE) 11 RPM30 (YE) 11 VPM35 (YE/BU) 13 VPM35 (YE/BU)
Are the resistances less than 3 ohms?
- Yes: GO to 23 .
- No: REPAIR the affected circuit.
- For DTC B2312 or B2316, measure:
- CHECK THE MIRROR POSITION SENSOR FEED AND RETURN FROM THE DSM
- Connect: DSM C341D.
- Ignition ON.
- For DTC B2312 or B2316, measure:
RH Exterior Mirror RH Exterior Mirror C601 C601 Pin Circuit Measurement / Action Pin Circuit 10 LPM30 (GY/VT) 12 RPM30 (YE) - For DTC B2320 or B2324, measure:
LH Exterior Mirror LH Exterior Mirror C516 C516 Pin Circuit Measurement / Action Pin Circuit 10 LPM30 (GY/VT) 12 RPM30 (YE)
Is the voltage approximately 5 volts?
- Yes: For DTC B2312 or B2316, CHECK the RH exterior mirror jumper harness between the vehicle harness and the exterior mirror motors for open or shorted circuits and damaged or pushed-out pins.
For DTC B2320 or B2324, CHECK the LH exterior mirror jumper harness between the vehicle harness and the exterior mirror motors for open or shorted circuits and damaged or pushed-out pins.
If the jumper harness is not OK, REPAIR the jumper harness. If the jumper harness cannot be repaired, INSTALL a new exterior mirror. REFER to Exterior Mirror . If the jumper harness is OK, INSTALL a new exterior mirror motor. REFER to Exterior Mirror Motor .
- No: GO to 26.
- CHECK THE EXTERIOR MIRROR POSITION SENSOR CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: DSM C341D.
- Disconnect: RH Exterior Mirror.
- Disconnect: LH Exterior Mirror.
- Ignition ON.
- For DTC B2314 or B2318, measure:
RH Exterior Mirror Ground C601 Ground Pin Circuit Measurement / Action Pin Circuit 9 VPM38 (BN/GN) - Ground 10 LPM30 (GY/VT) - Ground 11 VPM37 (BU/OG) - Ground 12 RPM30 (YE) - Ground - For DTC B2322 or B2326, measure:
LH Exterior Mirror Ground C516 Ground Pin Circuit Measurement / Action Pin Circuit 9 VPM36 (BN/YE) - Ground 10 LPM30 (GY/VT) - Ground 11 VPM35 (YE/BU) - Ground 12 RPM30 (YE) - Ground
Are any voltages present?
- Yes: REPAIR the affected circuit.
- No: For DTC B2314 or B2318, CHECK the RH exterior mirror jumper harness between the vehicle harness and the exterior mirror motors for open or shorted circuits and damaged or pushed-out pins.
For DTC B2322 or B2326, CHECK the LH exterior mirror jumper harness between the vehicle harness and the exterior mirror motors for open or shorted circuits and damaged or pushed-out pins.
If the jumper harness is not OK, REPAIR the jumper harness. If the jumper harness cannot be repaired, INSTALL a new exterior mirror. REFER to Exterior Mirror . If the jumper harness is OK, INSTALL a new exterior mirror motor. REFER to Exterior Mirror Motor .
- CHECK THE EXTERIOR MIRROR
- Ignition OFF.
- Connect: DSM C341D.
- Ignition ON.
- Using a scan tool, clear the DTCs and perform DSM self-test.
Did DSM DTC B2223 or B2224 return?
- Yes: GO to 26 .
- No: CHECK the LH or RH exterior mirror jumper harness between the vehicle harness and the exterior mirror motors for shorted circuits or damaged and pushed-out pins. If the jumper harness is not OK, REPAIR the jumper harness. If the jumper harness cannot be repaired, INSTALL a new exterior mirror. REFER to Exterior Mirror . If the jumper harness is OK, INSTALL a new exterior mirror motor. REFER to Exterior Mirror Motor .
- CHECK THE DSM FOR CORRECT OPERATION
- Ignition OFF.
- Disconnect and inspect all DSM connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the DSM connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
- Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new DSM. REFER to DRIVER SEAT MODULE (DSM) .
- No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.