Heater Relay Test
Heater relay is top left relay in relay panel/junction block, located under left side of dash. Remove relay, and connect 12-volt battery. See Fig 1. Using an ohmmeter, check continuity between terminals. See HEATER RELAY CONTINUITY TEST table. If continuity is not as specified, replace relay.
HEATER RELAY CONTINUITY TEST
| Battery Voltage | Terminals | Continuity |
|---|---|---|
| On | 1 & 3 | Yes |
| Off | 1 & 3 | No |
| Off | 2 & 4 | Yes |