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Rear View Mirror: Overview Ford Transit VII

Mirrors ~674 words

Normal Operation

The exterior mirror control switch receives power through circuit 29-AD12 (OG/YE) and ground through circuit 31-AD12 (BK). The exterior mirror control switch uses circuit 32-AD1 (WH/RD) as the common circuit for both exterior mirror up/down and right/left movement.

This pinpoint test is intended to diagnose the following

  1. Fuse
  2. Wiring, terminals or connectors
  3. Exterior mirror control switch

The exterior mirror control switch controls the LH exterior mirror motor movement by switching voltage and ground to circuits 33-AD8 (YE/BU), 34-AD7 (BU/RD) and 32-AD1(WH/RD)/32-AD6 (WH). The exterior mirror switch controls the RH exterior mirror motor movement by switching voltage and ground to circuits 33-AD11 (YE/VT), 34-AD10 (BU/YE) and 32-AD1 (WH/RD)/32-AD9 (WH/GN).

Mirror Movement

  1. When the LH/RH exterior mirror motor receives ground through circuit 33-AD8 (YE/BU)/33-AD11 (YE/VT) and power through circuit 32-AD1(WH/RD)/32-AD6 (WH)/32-AD9 (WH/GN), the LH/RH exterior mirror motor will operate left.
  2. When the LH/RH exterior mirror motor receives power through circuit 33-AD8 (YE/BU)/33-AD11 (YE/VT) and ground through circuit 32-AD1(WH/RD)/32-AD6 (WH)/32-AD9 (WH/GN), the LH/RH exterior mirror motor will operate right.
  3. When the LH/RH exterior mirror motor receives ground through circuit 34-AD7 (BU/RD)/34-AD10 (BU/YE) and power through circuit 32-AD1(WH/RD)/32-AD6 (WH)/32-AD9 (WH/GN), the LH/RH exterior mirror motor will operate downward.
  4. When the LH/RH exterior mirror motor receives power through circuit 34-AD7 (BU/RD)/34-AD10 (BU/YE) and ground through circuit 32-AD1(WH/RD)/32-AD6 (WH)/32-AD9 (WH/GN), the LH/RH exterior mirror motor will operate upward.

This pinpoint test is intended to diagnose the following

  1. Wiring, terminals or connectors
  2. Exterior mirror control switch
  3. Exterior mirror motor
  4. Exterior mirror

The exterior mirror control switch controls the LH exterior mirror motor movement by switching voltage and ground to circuits 33-AD8 (YE/BU), 34-AD7 (BU/RD) and 32-AD1(WH/RD)/32-AD6 (WH). The exterior mirror switch controls the RH exterior mirror motor movement by switching voltage and ground to circuits 33-AD11 (YE/VT), 34-AD10 (BU/YE) and 32-AD1 (WH/RD)/32-AD9 (WH/GN).

Mirror Movement

  1. When the LH/RH exterior mirror motor receives ground through circuit 33-AD8 (YE/BU)/33-AD11 (YE/VT) and power through circuit 32-AD1(WH/RD)/32-AD6 (WH)/32-AD9 (WH/GN), the LH/RH exterior mirror motor will operate left.
  2. When the LH/RH exterior mirror motor receives power through circuit 33-AD8 (YE/BU)/33-AD11 (YE/VT) and ground through circuit 32-AD1(WH/RD)/32-AD6 (WH)/32-AD9 (WH/GN), the LH/RH exterior mirror motor will operate right.
  3. When the LH/RH exterior mirror motor receives ground through circuit 34-AD7 (BU/RD)/34-AD10 (BU/YE) and power through circuit 32-AD1(WH/RD)/32-AD6 (WH)/32-AD9 (WH/GN), the LH/RH exterior mirror motor will operate downward.
  4. When the LH/RH exterior mirror motor receives power through circuit 34-AD7 (BU/RD)/34-AD10 (BU/YE) and ground through circuit 32-AD1(WH/RD)/32-AD6 (WH)/32-AD9 (WH/GN), the LH/RH exterior mirror motor will operate upward.

This pinpoint test is intended to diagnose the following

  1. Wiring, terminals or connectors
  2. Exterior mirror control switch
  3. Exterior mirror motor
  4. Exterior mirror

The rear window defrost/heated mirror switch is grounded through circuit 91S-HB31 (BK/OG). When the engine is running and the rear window defrost/heated mirror switch is pressed, the rear window defrost/heated mirror switch supplies a ground input to the Generic Electronic Module (GEM). The GEM then activates the rear window defrost/heated mirror relay by grounding the rear window defrost/heated mirror relay coil through circuit 15S-HB20 (GN/BK). When the rear window defrost/heated mirror relay is activated, voltage is supplied to the LH heated exterior mirror through circuit 15S-HB2 (GN/BU)/15S-HB15 (GN/BK)/15S-HB35 (GN/BK) and the RH heated exterior mirrors through circuit 15S-HB2 (GN/BU)/15S-HB28 (GN/OG)/15S-HB36 (GN/OG). Ground is supplied to the LH heated exterior mirror through circuit 31-HB35 (BK)/31-DA11 (BK)/31-DA8 (BK) and to the RH heated exterior mirror through circuit 31-HB36 (BK)/31-DA12 (BK).

  1. DTC B1343 (Heated Backlite Input Circuit Failure) - Sets when a short to ground is detected in the rear window defrost switch input circuit.
  2. DTC B1349 (Heated Backlite Relay Short to Battery) - Sets when a short to voltage is detected in the rear window defrost relay coil control circuit.
  3. DTC B1350 (Heated Backlite Relay Short to Ground) - Sets when an open or short to ground is detected in the rear window defrost relay coil control circuit.

This pinpoint test is intended to diagnose the following

  1. Fuse(s)
  2. Wiring, terminals or connectors
  3. Rear window defrost/heated mirror relay
  4. Rear window defrost/heated mirror switch
  5. Exterior mirror glass
  6. Exterior mirror
  7. GEM

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