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Diagnosis and Testing|Removal and Installation > < Rear View Mirrors

Transit 2000.5 (01.2000-05.2006)

Rear View Mirrors - Rear View Mirrors Transit 2000.5 (01/2000-05/2006)
Diagnosis and Testing

Refer to Wiring Diagrams Section 501-09, for schematic and connector information.

Inspection and Verification

  1. Verify the customer concern.
  1. Visually inspect for obvious signs of mechanical or electrical damage.

Visual Inspection Chart

Mechanical Electrical
  • Exterior mirror(s)
  • Fuse(s)
  • Relay
  • Wiring harness
  • Electrical connector(s)
  • Mirror motor
  • Switch
  1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  1. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.

Symptom Chart

Symptom Possible Sources Action
The mirrors are inoperative
*
Exterior mirror control switch.
*
Circuit(s).
*
CARRY OUT the Exterior Mirror Control Switch Component Test. REFER to the Wiring Diagrams.
*
GO to Pinpoint Test A.
A single mirror is inoperative
*
Circuit(s).
*
Exterior mirror control switch.
*
CARRY OUT the Exterior Mirror Control Switch Component Test. REFER to the Wiring Diagrams.
*
GO to Pinpoint Test B.
A single mirror does not function with switch logic
*
Exterior mirror control switch.
*
Exterior mirror motor(s).
*
Circuit(s).
*
CARRY OUT the Exterior Mirror Control Switch Component Test. REFER to the Wiring Diagrams.
*
GO to Pinpoint Test C.
The heated exterior mirror does not defrost
*
Relay.
*
Heated rear window switch.
*
Circuit(s).
*
Heated mirror element(s).
*
REFER to Section 501-11.

Pinpoint Tests

NOTE:
NOTE:Use a digital multimeter for all electrical measurements.

PINPOINT TEST A : THE MIRRORS ARE INOPERATIVE
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
A1: CHECK THE INTERIOR LIGHT FUNCTION
1
CHECK the interior light function.

Does the interior light function operate correctly?
Yes
GO to A2.
No
REPAIR circuit 29-LC2 (OG/BU). TEST the system for normal operation.
A2: CHECK THE VOLTAGE TO THE EXTERIOR MIRROR CONTROL SWITCH CIRCUIT 29-AD12 (OG/YE)
1
Disconnect Exterior Mirror Control Switch C2010.

2
Measure the voltage between the exterior mirror control switch C2010 pin 6, circuit 29-AD12 (OG/YE) harness side and ground.

Is the voltage greater than 10 volts?
Yes
GO to A3.
No
REPAIR circuit 29-AD12 (OG/YE). TEST the system for normal operation.
A3: CHECK CIRCUIT 31-AD12 (BK) FOR CONTINUITY

1
Measure the resistance between the exterior mirror control switch C2010 pin 4, circuit 31-AD12 (BK) harness side and ground.

Is the resistance less than 5 ohms?
Yes
GO to A4.
No
REPAIR circuit 31-AD12 (BK). TEST the system for normal operation.
A4: CHECK CIRCUIT 33-AD2 (YE/RD) FOR CONTINUITY
NOTE:
NOTE:The circuit number and wiring colors change at soldered joint S209
1
Disconnect Left-hand Exterior Mirror C2011.

2
Measure the resistance between the exterior mirror control switch C2010 pin 3, circuit 33-AD2 (YE/RD) harness side, and the left-hand exterior mirror C2011 pin 1, circuit 33-AD6 (YE), harness side.

Is the resistance less than 5 ohms?
Yes
VERIFY the customer concern.
No
REPAIR circuit 33-AD2 (YE/RD). TEST the system for normal operation.

PINPOINT TEST B : A SINGLE MIRROR IS INOPERATIVE
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
B1: CHECK CIRCUIT 33-AD9 (YE/GN) AND 33-AD6 (YE) FOR CONTINUITY
NOTE:
NOTE:The circuit numbers and wiring colors change at soldered joint S209.
1
Disconnect Inoperative Exterior Mirror.

2
Measure the voltage between the inoperative exterior mirror C2011 pin 5, circuit 32-AD8 (WH/BU) and pin 1, circuit 33-AD6 (YE) harness side (left-hand exterior mirror) or C2012 pin 5, circuit 32-AD11 (WH/VT) and pin 1, circuit 33-AD9 (YE/GN) harness side (right-hand exterior mirror).
  • Operate the exterior mirror control switch in the DOWN position

Is the voltage greater than 10 volts?
Yes
INSTALL a new exterior mirror. TEST the system for normal operation.
No
REPAIR circuit 33-AD9 (YE/GN) or circuit 33-AD6 (YE). TEST the system for normal operation.

PINPOINT TEST C : A SINGLE MIRROR DOES NOT FUNCTION WITH SWITCH LOGIC
NOTE:
NOTE:If the left-hand exterior mirror up/down function is inoperative, GO to C1. If the left-hand exterior mirror left/right function is inoperative, GO to C4. If the right-hand exterior mirror up/down function is inoperative, GO to C7. If the right-hand exterior mirror left/right function is inoperative, GO to C10.
TEST CONDITIONS DETAILS/RESULTS/ACTIONS
C1: CHECK THE LEFT-HAND EXTERIOR MIRROR UP/DOWN CIRCUIT
NOTE:
NOTE:The circuit numbers and wiring colors change at soldered joint S209.
1
Disconnect Left-hand Exterior Mirror C2011.

2
Measure the voltage between the left-hand exterior mirror C2011 pin 5, circuit 32-AD8 (WH/BU) and pin 1, circuit 33-AD6 (YE) harness side.
  • OPERATE the exterior mirror control switch UP and DOWN.

Is the voltage greater than 10 volts when the exterior mirror control switch is moved to the UP position and is the polarity reversed when moved to the DOWN position?
Yes
INSTALL a new left-hand exterior mirror. TEST the system for normal operation.
No
GO to C2.
C2: CHECK CIRCUIT 32-AD8 (WH/BU) FOR CONTINUITY
1
Disconnect Exterior Mirror Control Switch C2010.

2
Measure the resistance between the exterior mirror control switch C2010 pin 7, circuit 32-AD8 (WH/BU) harness side, and the left-hand exterior mirror C2011 pin 5, circuit 32-AD8 (WH/BU) harness side.

Is the resistance less than 5 ohms?
Yes
GO to C3.
No
REPAIR circuit 32-AD8 (WH/BU). TEST the system for normal operation.
C3: CHECK CIRCUIT 33-AD6 (YE) FOR CONTINUITY

1
Measure the resistance between the exterior mirror control switch C2010 pin 3, circuit 33-AD2 (YE/RD) harness side, and the left-hand exterior mirror C2011 pin 1, circuit 33-AD6 (YE) harness side.

Is the resistance less than 5 ohms?
Yes
INSTALL a new left-hand exterior mirror. TEST the system for normal operation.
No
REPAIR circuit 33-AD6 (YE). TEST the system for normal operation.
C4: CHECK THE LEFT-HAND EXTERIOR MIRROR LEFT/RIGHT CIRCUIT
NOTE:
NOTE:The circuit numbers and wiring colors change at soldered joint S209
1
Disconnect Left-hand Exterior Mirror C2011.

2
Measure the voltage between the left-hand exterior mirror C2011 pin 4, circuit 32-AD7 (WH/RD) and pin 1, circuit 33-AD6 (YE) harness side.
  • OPERATE the exterior mirror control switch LEFT and RIGHT.

Is the voltage greater than 10 volts when the exterior mirror control switch is moved to the LEFT position and is the polarity reversed when moved to the RIGHT position?
Yes
INSTALL a new left-hand exterior mirror. TEST the system for normal operation.
No
GO to C5.
C5: CHECK CIRCUIT 32-AD7 (WH/RD) FOR CONTINUITY
1
Disconnect Exterior Mirror Control Switch C2010.

2
Measure the resistance between the exterior mirror control switch C2010 pin 1, circuit 32-AD7 (WH/RD) harness side, and the left-hand exterior mirror C2011 pin 4, circuit 32-AD7 (WH/RD) harness side.

Is the resistance less than 5 ohms?
Yes
GO to C6.
No
REPAIR circuit 32-AD7 (WH/RD). TEST the system for normal operation.
C6: CHECK CIRCUIT 33-AD6 (YE) FOR CONTINUITY

1
Measure the resistance between the exterior mirror control switch C2010 pin 3, circuit 33-AD2 (YE/RD) harness side, and the left-hand exterior mirror C2011 pin 1, circuit 33-AD6 (YE) harness side.

Is the resistance less than 5 ohms?
Yes
INSTALL a new left-hand exterior mirror. TEST the system for normal operation.
No
REPAIR circuit 33-AD6 (YE). TEST the system for normal operation.
C7: CHECK THE RIGHT-HAND EXTERIOR MIRROR UP/DOWN CIRCUIT
NOTE:
NOTE:The circuit numbers and wiring colors change at soldered joint S209.
1
Disconnect Right-hand Exterior Mirror C2012.

2
Measure the voltage between the right-hand exterior mirror C2012 pin 5, circuit 32-AD11 (WH/VT) and pin 1, circuit 33-AD9 (YE/GN) harness side.
  • OPERATE the exterior mirror control switch UP and DOWN.

Is the voltage greater than 10 volts when the exterior mirror control switch is moved to the UP position and is the polarity reversed when moved to the DOWN position?
Yes
INSTALL a new right-hand exterior mirror. TEST the system for normal operation.
No
GO to C8.
C8: CHECK CIRCUIT 32-AD11 (WH/VT) FOR CONTINUITY
1
Disconnect Exterior Mirror Control Switch C2010.

2
Measure the resistance between the exterior mirror control switch C2010 pin 5, circuit 32-AD11 (WH/VT) harness side, and the right-hand exterior mirror C2012 pin 5, circuit 32-AD11 (WH/VT) harness side.

Is the resistance less than 5 ohms?
Yes
GO to C9.
No
REPAIR circuit 32-AD11 (WH/VT). TEST the system for normal operation.
C9: CHECK CIRCUIT 33-AD9 (YE/GN) FOR CONTINUITY

1
Measure the resistance between the exterior mirror control switch C2010 pin 3, circuit 33-AD2 (YE/RD) harness side, and the right-hand exterior mirror C2012 pin 1, circuit 33-AD9 (YE/GN) harness side.

Is the resistance less than 5 ohms?
Yes
INSTALL a new right-hand exterior mirror. TEST the system for normal operation.
No
REPAIR circuit 33-AD9 (YE/GN). TEST the system for normal operation.
C10: CHECK THE RIGHT-HAND EXTERIOR MIRROR LEFT/RIGHT CIRCUIT
1
Disconnect Right-hand Exterior Mirror C2012.

2
Measure the voltage between the right-hand exterior mirror C2012 pin 4, circuit 32-AD10 (WH/BK) and pin 1, circuit 33-AD9 (YE/GN) harness side.
  • OPERATE the exterior mirror control switch LEFT and RIGHT.

Is the voltage greater than 10 volts when the exterior mirror control switch is moved to the LEFT position and is the polarity reversed when moved to the RIGHT position?
Yes
INSTALL a new right-hand exterior mirror. TEST the system for normal operation.
No
GO to C11.
C11: CHECK CIRCUIT 32-AD10 (WH/BK) FOR CONTINUITY
1
Disconnect Exterior Mirror Control Switch C2010.

2
Measure the resistance between the exterior mirror control switch C2010 pin 2, circuit 32-AD10 (WH/BK) harness side, and the right-hand exterior mirror C2012 pin 4, circuit 32-AD10 (WH/BK) harness side.

Is the resistance less than 5 ohms?
Yes
GO to C12.
No
REPAIR circuit 32-AD10 (WH/BK). TEST the system for normal operation.
C12: CHECK CIRCUIT 33-AD9 (YE/GN) FOR CONTINUITY

1
Measure the resistance between the exterior mirror control switch C2010 pin 3, circuit 33-AD2 (YE/RD) harness side, and the right-hand exterior mirror C2012 pin 1, circuit 33-AD9 (YE/GN) harness side.

Is the resistance less than 5 ohms.?
Yes
INSTALL a new right-hand exterior mirror. TEST the system for normal operation.
No
REPAIR circuit 33-AD9 (YE/GN). TEST the system for normal operation.

Diagnosis and Testing|Removal and Installation > < Rear View Mirrors