Delta 88 V6-3800 3.8L (1988)
Test C Blower Switch Test Part 2
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If all voltages are correct, proceed to step 2.
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If Battery is present at terminal D, but not at terminals C or B, check the BRN/WHT wire (64) for an open between the A/C Mode Selector,
terminal D, and the Blower Switch, Terminal E.
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If the voltages at terminals C or B are not correct, check the TAN (63) and LT BLU (72) wires for opens or shorts. If wires are good, repair or
replace the Blower Switch.
2. Measure the voltages to ground at terminal 2 of the Blower Relay.
Test C Blower Switch Test Part 2
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If voltages in steps 1 and 2 are correct, Blower Switch is good.
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If voltages are incorrect at terminal 2, check the ORN wire (52) for an open or short. If ORN wire is good, repair or replace the Blower Switch.
Test D: Blower Resistors Test
Remove the connector from the Blower Resistor Assembly and measure the resistance between the resistor terminals listed in the image. The resistance
values are approximate.
Test D Blower Resistor Assembly Test
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If resistance values are different from the values given, install a new Blower Resistor Assembly.
Test E: Blower Relay Test
1. Remove the connector from the Blower Relay and measure the voltage to ground at each wire of the connector.
