Possible Causes

Possible causes are:

• Overheating condition (P1116).
• Damaged harness (P1112 or P1117).
• Improper harness connection (P0112, P0113, P0117, P0118, P1289 or P1290).
• Grounded circuit in harness (P0112 or P0117).
• Damaged PCM (P0112, P1112, P0113, P1116, P0117, P1117, P0118, P1288, P1289 or P1290).
• Damaged ECT sensor (P1116, P0117, P1117 or P0118).
• Damaged CHT sensor (P1285, P1288, P1289 or P1290).
• Damaged MAF/IAT sensor (P0112, P1112 or P1113).
• Basic engine concerns (P1285 or P1299).
• Engine cooling concerns (P1285 or P1299).
• Insufficient warm-up time (P0125).
• Low engine coolant level (P0125, P1116, P1117, P1285, P1288 or P1299).
• Poor thermostat operation (P1116).
• Leaky or stuck open thermostat (P0125).
• Damaged harness connector (P1112, P1116, P1117 or P1288).
• Open in ECT harness (P0118).
• Grounded circuit in CHT harness (P1289 or P1290).
• Open circuit in CHT harness (P1289 or P1290).
• Short to power (P0113 or P0118).
• Open in MAF/IAT harness (P0113).
• CHT sensor concerns (P1285).