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Starter Motor Does Not Operate: 9-5

  1. Measure voltage at battery. If voltage is greater than 11 volts, go to next step. If voltage is 11 volts or less, replace battery. Go to step  15 .
  2. Turn ignition on. Using Tech I scan tool, access Central Electronics With Anti-Theft Alarm (TWICE) module. Read IGNITION +15 value. If value is ON, go to next step. If value is not ON, check for open circuit in +15 (Blue/Red wire) power supply to TWICE module. Repair wiring as necessary. Go to step  15 .
  3. Ensure parking brake is set. Put A/T in Park or M/T in Neutral. Attempt to start vehicle. If starter does not click, go to next step. If starter clicks, repair wiring between battery and starter motor, and wiring between starter and ground. Go to step  15 .
  4. Connect test light between ground and lower terminal on fuse No. 30 (22-amp). Fuse panel is located on left side of instrument panel. Attempt to start engine. If test light comes on, go to next step. If test light does not come on, replace fuse. If fuse is okay, repair wiring to fuse. See WIRING DIAGRAMS  . Go to step  15 .
  5. If vehicle is equipped with A/T, go to step  7 . If vehicle is equipped with M/T, remove starter relay located in relay block under left side of instrument panel. See Fig 1 . Connect test light between ground and starter relay terminal No. 4 (Blue wire). Attempt to start engine. If test light comes on, go to next step. If test light does not come on, repair open circuit in Blue wire. Go to step  15 .
    Fig 1: Locating Starter Relay
    G00005569Courtesy of SAAB-SCANIA OF AMERICA, INC.
  6. Connect test light between ground and relay connector terminal No. 1 (Red wire). If test light comes on, go to step  8 . If test light does not come on, repair open circuit in Red wire. Go to step  15 .
  7. Ensure transmission is in Park. Apply parking brake. Disconnect starter interlock switch 10-pin connector located under battery tray. See Fig 2 . Connect test light between ground and 10-pin connector terminal No. 6 (White or Blue wire). Attempt to start engine. If test light comes on, go to next step. If test light does not come on, repair open circuit in White or Blue wire between ignition switch and interlock switch connector terminal No. 6. Go to step  15 .
    Fig 2: Locating Starter Interlock Switch Connector (9-5)
    G00005570Courtesy of SAAB-SCANIA OF AMERICA, INC.
  8. Connect jumper wire between starter interlock switch 10-pin connector terminals No. 6 (White or Blue wire) and No. 10 (Blue wire). Attempt to start engine. If starter does not operate, go to next step. If starter operates, replace gear selector position sensor. Go to step  15 .
  9. Connect test light between ground and relay connector terminal No. 4 (Blue wire). Attempt to start engine. If test light comes on, go to next step. If test light does not come on, repair open circuit in Blue wire between relay connector and starter interlock switch 10-pin connector terminal No. 4. Go to step  15 .
  10. Connect a jumper wire with an on/off switch between relay connector terminals No. 1 (Red wire) and No. 2 (Yellow wire). Turn switch on. If starter operates, go to next step. If starter does not operate, go to step  13 .
  11. Connect test light between relay connector terminals No. 4 (Blue wire) and No. 5 (Blue/White wire). Attempt to start engine. If test light does not come on, go to next step. If test light comes on, replace starter relay. Go to step  15 .
  12. Disconnect TWICE module connector. TWICE module is located under driver's seat. Connect jumper wire between ground and TWICE module connector terminal No. 4 (Blue/White wire). Attempt to start engine. If test light comes on, replace TWICE module. If test light does not come on, repair open circuit in Blue/White wire. Go to step  15 .
  13. Ensure jumper wire with on/off switch is still installed. Connect test light between relay connector terminals No. 1 (Red wire) and No. 2 (Yellow wire). If test light comes on, go to next step. If test light does not come on, repair open circuit in Yellow wire between relay connector terminal No. 2 and starter motor. Go to step  15 .
  14. Connect test light between starter solenoid terminal No. 50 (Blue wire) and starter housing. If test light comes on, replace starter. If test light does not come on, repair circuit between starter and ground. Go to step  15 .
  15. Use Tech 1 scan tool to clear DTCs. Perform a starter function check. If starter operates, system is okay. If starter does not operate, replace starter.
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