Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
 
Vehicle » Powertrain Management » Computers and Control Systems » Testing and Inspection » Pinpoint Tests » KL: Shift Indicator Lamp (SIL) - Pinpoint Test  
 
 
  KL: Shift Indicator Lamp (SIL) - Pinpoint Test  
 

KL: Shift Indicator Lamp (SIL)

KL: Introduction See: KL: Shift Indicator Lamp (SIL) - Introduction

KL1 CHECK SHIFT INDICATOR LAMP (SIL) OPERATION

Note: When the SIL is operating properly, it comes on when optimum shift speed is reached. The SIL will turn off after a shift has been completed or while in top gear.

  • Drive vehicle through all forward gears.
  • Look for the SIL to come on before the next upshift.
  • Look for the SIL to be off after a shift has been completed or while in top gear.

Is SIL on all the time?
Yes

  • KEY OFF. GO to KL4

.

No

  • KEY OFF. GO to KL2

.

KL2 CHECK SIL CIRCUIT FUSE

  • Remove SIL circuit fuse and inspect.

Is fuse OK?
Yes

  • INSTALL SIL circuit fuse. GO to KL3

.

No

  • REPAIR short circuit. REPLACE SIL circuit fuse.

KL3 CHECK SIL BULB

  • Remove SIL bulb and inspect.

Is SIL bulb OK?
Yes

  • GO to KL5

.

No

  • REPLACE SIL bulb.

KL4 CHECK SIL CIRCUIT FOR SHORT TO GROUND IN HARNESS

  • Shift transmission to highest gear.
  • Disconnect PCM.
  • Measure resistance between SIL circuit at PCM harness connector and battery negative post.

Is resistance greater than 10,000 ohms?
Yes

No

  • REPAIR short circuit.

KL5 CHECK IGN START/RUN VOLTAGE TO SIL SOCKET

  • SIL bulb removed.
  • Transmission in any gear except top gear.
  • Key on, engine off.
  • Measure voltage of the SIL circuit between the SIL socket and chassis ground.

Is the voltage greater than 10.5 volts?
Yes

  • KEY OFF. GO to KL7

.

No

  • KEY OFF. RECONNECT SIL bulb. GO to KL6

.

KL6 CHECK OPERATION OF TOP GEAR SWITCH

  • Transmission in any gear except top gear.
  • Disconnect top gear switch.
  • Measure resistance of the top gear switch.

Is resistance less than 5.0 ohms?
Yes

  • REPAIR open circuit.

No

  • REPLACE top gear switch.

KL7 CHECK SIL CIRCUIT FOR OPEN IN HARNESS

  • SIL bulb removed.
  • Disconnect PCM.
  • Measure resistance between SIL circuit at PCM harness connector and SIL bulb socket.

Is resistance less than 5.0 ohms?
Yes

No

  • REPAIR open circuit.