Rap Relay Test C: Rap Relay 2 Test

WARNING: This page is about a different car, the 1990 Cadillac Allante. However, it is still accessible from the selected car via links, so may be relevant.

C: RAP RELAY 2 TEST

Condition

Connect Between

⁽¹⁾ Correct Result

Connect Test Lamp At RAP RELAY 2, Disconnected

5 (RED/YEL) & Ground

⁽²⁾ Test Lamp Lights

Connect Test Lamp At RAP RELAY 2, Disconnected

4 (RED) & Ground

⁽³⁾ Test Lamp Lights

⁽¹⁾	If results are correct, go to C: RAP RELAY 2 TEST TABLE 2 .

⁽²⁾	If results are incorrect, check RED/YEL (840) wire for an open.

⁽³⁾	If results are incorrect, check RED (2) wire for an open.

C: RAP RELAY 2 TEST

Condition

Connect Between

Correct Result

⁽¹⁾ BCM Display

Connect Test Lamp At RAP RELAY 2, Disconnected - Enter & Select BCM Output BO03

5 (RED/YEL) & 2 (BLK/WHT)

Test Lamp Lights

⁽²⁾ LO

Connect Test Lamp At RAP RELAY 2, Disconnected - Enter & Select BCM Output BO03

5 (RED/YEL) & 2 (BLK/WHT)

Test Lamp Does Not Light

⁽²⁾ HI

⁽¹⁾	If the BCM display does not cycle from LO to HI, replace the BCM.

⁽²⁾	If test lamp lights as shown, go to C: RAP RELAY 2 TEST TABLE 3 . If test lamp does not light as shown, check BLK/WHT (707) wire for an open or short to ground.

C: RAP RELAY 2 TEST

Condition

Connect Between

⁽¹⁾ Correct Result

For Diagnosis

Connect Fused Jumper At RAP RELAY 2 Disconnected & Ignition Off

4 (RED) & 1 (BRN)

Radio & Wipers Operate

⁽²⁾

⁽¹⁾	If result is correct, replace RAP RELAY 2.

⁽²⁾	If result is incorrect, check BRN (4) wire for an open.