Transmission Controls
SYSTEM VOLTAGE MALFUNCTION - P1794Function:
Battery voltage monitor.
Possible Causes:
Faulty harness wiring/connection.
Blown fuses.
Effects:
MIL illuminated.
Second gear selected permanently i.e. "Limp Home" mode.
Remedy:
Repair or renew harness/connector.
Examine fuse F14 and F5 in LH and RH heelboard fuse-boxes respectively.
Renew (if necessary) after determining cause of rupture.
Troubleshooting Schematic
NOTE: * +12V present only when ignition switched ON.
Key to Schematic Diagram
1. Transmission Control Module
2. Transmission Unit
3. Brake Switch
4. Pressure Switch - Manifold
5. Transmission Fluid Temperature Sensor
6. Input Speed Sensor
7. Output Speed Sensor
8. Engine Control Module
9. Left-hand Heelboard Fuse-box
10. Torque Control Clutch Solenoid
11. Force Motor
12. Shift Solenoid A
13. Shift Solenoid B
14. ABS/Traction Control Control Module
15. Right-hand Heelboard Fuse-box
16. Kickdown Switch