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Mode Controls Do Not Work

WARNING: This page is about a different car, the 2006 Suzuki Verona. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE

Step Action Value(s) Yes No
1 Measure the voltage between terminal 4 and ground of the mode motor and the HTR/DEF motor.
Is the voltage within the specified value for both motors?
11 - 14 V Go to Step 3 Go to Step 2
2
  1. Check the connector and circuit BRN for any wiring or terminal problems.
  2. Repair any problems found.

Is the repair complete?
- System OK -
3
  1. Using the Motor Control Table, measure the voltages at the specified terminals of the specified motor connectors.
  2. Change the mode settings and observe the voltage changes.

Are the voltages as specified?
See the "MOTOR CONTROL TABLE ". Go to Step 4 Go to Step 5
4 Replace the motor that does not operate properly.
Is the repair complete?
- System OK -
5
  1. Using the Motor Control Table, measure the voltages at the specified terminals of the specified controller connectors.
  2. Change the mode settings and observe the voltage changes.

Are the voltages as specified?
See the "MOTOR CONTROL TABLE ". Go to Step 6 Go to Step 7
6
  1. Check the wiring harness and connectors between the controller and the motor that is not performing properly.
  2. Repair or replace the wiring harness or the defective terminal.

Is the repair complete?
- System OK -
7 Check the connector at the controller.
Is there a defective terminal?
- Go to Step 8 Go to Step 9
8 Repair or replace the terminal.
Is the repair complete?
- System OK -
9 Replace the controller.
Is the repair complete?
- System OK -