LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Eagle >> 1991 >> Premier LX >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Self-Diagnostics >> Test SP-21A >> Checking Brakelight Switch Circuits For Open
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Checking Brakelight Switch Circuits For Open

  1. If DRB-II display shows RE at all times, perform TEST SP-21B  . If DRB-II does not show RE at all times, disconnect brakelight switch connector. Inspect connector. If connector condition is not okay, repair connector as necessary. Perform VERIFICATION TEST SP-VER  .
  2. If connector condition is okay, connect a jumper wire between terminals No. 1 (Black/Light Green wire) and No. 2 (White/Pink wire) at brakelight switch connector. Using DRB-II, read inputs monitor. If DRB-II does not show RE at all times, go to step 4).
  3. If DRB-II does show RE at all times, check brakelight switch adjustment. If brakelight switch is not adjusted correctly, adjust brakelight switch. Perform VERIFICATION TEST SP-VER  . If brakelight switch is adjusted correctly, replace brakelight switch. Perform VERIFICATION TEST SP-VER  .
  4. If DRB-II does not show RE at all times in step 2), connect a jumper wire between terminal No. 2 (White/Pink wire) and ground. Using DRB-II, read inputs monitor. If DRB-II display shows RE, repair open Black/Light Green wire. Perform VERIFICATION TEST SP-VER  .
  5. If DRB-II does not show RE, turn ignition switch to OFF position. Remove jumper wire. Disconnect Single Board Engine Controller (SBEC) connector. Inspect connector. If connector condition is not okay, repair connector as necessary. Perform VERIFICATION TEST SP-VER  .
  6. If connector condition is okay, using an external ohmmeter, check resistance at White/Pink wire between terminal No. 29 at SBEC connector and terminal No. 2 at brakelight switch connector. If resistance is less than 10 ohms, replace SBEC. Perform VERIFICATION TEST SP-VER  . If resistance is 10 ohms or more, repair open White/Pink wire. Perform VERIFICATION TEST SP-VER  .
scientia non olet · About LEMON Manuals