Diagnostics
| Diagnostics |
The cruise control switch and the clutch and brake pedals are used when diagnosing fault. On cars with automatic transmission, the cruise control switch, the brake pedal and the selector lever are used.
Fault diagnosis is carried out in diagnostics mode and a general description of the procedure is given in the table below. Follow the instructions described in points 1 to 3 in the table to enter the diagnostics mode. Then start fault diagnosis in point 4 and work your way through the entire fault diagnosis procedure to point 17, step by step.
Start fault diagnosis by checking:
| 1. |
The fuses, see
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| 2. |
Power supply +54, see
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| 3. |
Grounding, see
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| 4. |
The connections in the control module connector for possible pin slide-out.
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To leave the diagnostics mode, increase speed to above 32 km/h (20 mph) or switch off the ignition. If you happen to make a mistake while in diagnostics mode, you will be returned automatically to point 4. You then have to start again from this point.
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Diagnostic procedure
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CRUISE lamp
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Check
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See page
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1
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The engine should be switched off and the handbrake applied.
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2
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Automatic transmission: selector lever in N (P, R)
Manual gearbox: clutch pedal depressed |
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3
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Move the switch to CANCEL and keep it there while the engine starts.
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The CRUISE lamp comes on to indicate that you are in diagnostics mode.
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Lights
Does not light |
CRUISE lamp |
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4
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Release the CANCEL button
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Goes out
Does not go out |
CANCEL function
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5
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Press the SET button.
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Lights
Does not light |
SET function.
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6
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Release the SET button.
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Goes out
Does not go out |
SET function.
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7
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Move the switch to the RES/- position
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Lights
Does not light |
RESUME function.
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8
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Release RES/
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Goes out
Does not go out |
RESUME function.
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9
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Move the switch to the ON/OFF position.
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Lights
Does not light |
ON/OFF function.
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10
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Release ON/OFF.
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Goes out
Does not go out |
ON/OFF function.
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11
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Automatic transmission: shift to D (3, 2, 1)
Manual gearbox: release the clutch |
Lights
Does not light |
Automatic transmission:
Selector lever position sensor Manual gearbox: Clutch pedal switch |
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12
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Depress the brake pedal.
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Goes out
Does not go out |
Brake pedal switch.
Automatic transmission Manual |
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13
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Release the brake pedal.
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Lights
Does not light |
Brake pedal switch.
Automatic transmission Manual |
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14
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Automatic transmission: shift to N (P, R)
Manual gearbox: depress the clutch pedal |
Goes out
Does not go out |
Automatic transmission:
Selector lever position sensor Manual gearbox: Clutch pedal switch |
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15
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Depress the brake pedal for about 5 seconds
After about 5 seconds |
Lights
Does not light Goes out Does not go out |
Brake lights switch Control module |
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16
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Release the brake pedal.
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There will be slight acceleration
No acceleration |
Stepping motor/cable
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17
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Drive off slowly.
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The lamp flashes in time with the speed
The lamp does not flash |
Vehicle speed signal
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